WILLIAM P. HALPERIN


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PERSONAL DATA:

Citizenship: Canada and United States

Address: 920 Maple Ave., Evanston IL 60202


Department of Physics, Northwestern University Evanston, IL 60208

Tele: (847) 491-3686

FAX: (847) 491-9982

e-mail: w-halperin@northwestern.edu

url: http://spindry.phys.northwestern.edu/


EDUCATIONAL BACKGROUND:

Undergraduate: Bachelor of Science, B.Sc.,1967; Queen's University, Kingston, Ontario

Graduate: Master of Science, M.Sc., 1968; University of Toronto, Toronto, Ontario

Doctor of Philosophy, Ph.D.,1975; Cornell University, Ithaca, NY


ACADEMIC OR PROFESSIONAL HONOURS AND APPOINTMENTS:

Prince of Wales Prize, Queen's University (1967)

National Research Council Fellowship (1967-68) Alfred P. Sloan Fellow (1977-81)

Yamada Science Foundation Fellow (1984)

Grant Selection Committee for Condensed Matter Physics, NSERC of Canada (1992-95) Chair, Grant Selection Committee for Condensed Matter Physics, NSERC of Canada (1994-95).

Fellow, American Physical Society (1995)

Chair, External Review Committee, Physics Department Purdue University (1995) Chair, Review of Canadian Academic Physics, 1996-98

Chair, External Review Committee, Physics Department Simon Fraser University (1998) Editor, Progress in Low Temperature Physics, Elsevier (1995- )

Member, International Proposal Review Committee, Canadian Neutron Scattering Facility (1998)

Member, Users Committee, National High Magnetic Field Laboratory(1998-01) Member, OCGS External Review Committee, Graduate Program Dept. of Physics, Univ.

of Guelph and Univ. of Waterloo, Nov. 30-Dec 2, 1998

Chair, Users Committee, National High Magnetic Field Laboratory(2000) Wender-Lewis Professor of Teaching and Research (2000-2001)

John Evans Professor of Physics (2001-)

Member, External Review Committee CNRS, CRTBT, Grenoble, France, Sept. 19-21, 2001

Chair, External Review Committee, Dept. of Physics, Univ. of Alberta, June 24-26, 2002


Regional Editor for North America, New Journal of Physics, Inst. of Phys. 2002-2011 Member, External Advisory Committee, National High Magnetic Field Laboratory (2004-)

Chair, External Advisory Committee for the National High Magnetic Field Laboratory (2004-)

Editorial Board, Journal of Low Temperature Physics, Springer, 2004

Member, External Review Committee, Department of Physics, Univ. of Toronto, 2004

Fellow, The Institute of Physics, 2004-

Visiting Professor, Joseph Fourier University, Grenoble, France (2004)

Member, OCGS Ext. Rev. Com., Dept. of Physics, Univ. of Toronto, Oct. 26-7, 2006. Member at large, Executive Committee Division of Condensed Matter Physics, American Physical Society, 2008-2011

E. LeRoy Hall Award, distingished teaching in the WCAS, 2007-2008.

Chair, 17th Int. Symp. on Quantum Fluids and Solids, Northwestern Univ., 8, 5-11, 2009. Chair and member, Steering Committee on Quantum Fluids and Solids, 2009-10

Science Advisory Board, Academy of Science of Finland for the Center of Excellence, Low Temp. and Quantum Devices, Aalto University. 2009-

International Advisory Committee, High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 2009-

Member, Inter. Advis. Com.18th Int. Symp. Quantum Fluids and Solids, Grenoble, 8/1-7, 2010

Invited testimony before the Subcommittee on Investigations and Oversight, House Committee on Science and Technology, April 22, 2010.

Chair, Fellowship Committee, DCMP, American Physical Society, 2011.

Member, International Advisory Com., 19th International Symposium on Quantum Fluids and Solids, Lancaster (2012).

Member, International Advisory Com., 26th Low Temp. Physics Conference, Beijing (2011).

Chair, Fellowship committee for the Division of Condensed matter Physics of the American Physical Society (2011).

Member Steering committee for Quantum Fluids and Solids 2012

Member, International Advisory Com., China High Magnetic Field Lab, Hefei (2009-) Member, International Advisory Com., 20th International Symposium on Quantum Fluids and Solids, Matsue, Japan (2012).

Member, Science Advisory Board (with Andrew Cleland), Finish Academy of Sciences, Center of Excellence Aalto University (2012-2018)

Member, International Advisory Com., 27th Low Temp. Physics Conference, Buenos Aires (2014).

Vice-Chair, Division of Condensed Matter Physics of the American Physical Society, elected to the chair line, chair elect, chair, and post chair (2014-18).

Secretary and representative for the USA on the C5 Commission of the International Union of Pure and Applied Physics (2014-2017); chair elect (-2020)


POST PH.D. EMPLOYMENT HISTORY:

Postdoctoral Fellow, Cornell University (1975)

Visiting Research Associate, Argonne National Laboratory (1975)

Resident Associate, Argonne National Laboratory (1979-85) Assistant Professor, Northwestern University (1975-81)

Visiting Professor, H.C. Ørsted Institute, Copenhagen, Denmark (8/15/77-9/2/77)

Visiting Scientist, IFF-Kernforschunsanlage, Jülich,West Germany (3/19/81-10/2/81) Associate Professor, Northwestern University (1981-86)

Chercheur Associé, Centre National de Recherche Scientifique, Grenoble (3/15/84- 9/15/84)

Professor, Northwestern University (1986-present)

Chair, Department of Physics and Astronomy (1990-1995)

Director, Integrated Science Program, Northwestern University (1998-2003)


EXTERNAL PHD EXAMINER:

J.M. Kyynarainen, Helsinki University of Technology, Helsinki, Finland, October 5,1990.

Olivier Buu, Universite de Grenoble, Grenoble France, December 16,1998.

Daren Sawkey, Queen’s University, Kingston Ontario, December 19, 2001. Marc-Henri Julien, Université Josef Fourier, 2010.


RESEARCH INTERESTS:

Quantum Liquids and Solids (superfluid 3He, normal liquid 3He , solid 3He) Superconductivity (ultralow temperature superconductors, high temperature ceramic superconductors, heavy fermion superconductivity, UPt3)

Quantum Size Effects in Metallic Particles (magnetic susceptibility and NMR)

Nuclear Magnetic Resonance in Solids, Nuclear Magnetic Resonance in Very High Field Electrical and Magnetic Properties of Quasi One-dimensional Molecular Crystals Porous Materials (glasses, sandstones, ceramics, aerogels and cement pastes)


PROFESSIONAL AFFILIATIONS:

Life Member, American Physical Society (APS)

Life Member, Division of Condensed Matter Physics (DCMP) of the APS Fellow, American Physical Society

Member, Ampere Society Fellow, Institute of Physics (UK)


CONSULTANTSHIPS:

Chicopee Research, Division of Johnson and Johnson, Dayton, NJ (1986) Standard Oil Engineered Materials Corp. Niagara Falls, NY (1987)

Hong Kong University of Science and Technology, Hong Kong (1995) Ontario Council on Graduate Studies (1998)

Federal Trade Commission, Chicago (2004-05) Federal Trade Commission, Washington DC (2008-11)

Department of Energy, Basic Energy Sciences, 2009-2010


BUSINESS INTERESTS:

Sole-proprietor, YOTEM, 920 Maple Ave., Evanston, IL 60202 (optical products and cryogenic cable and tubing)


BOOKS EDITED:

"Helium Three", co-edited with L.P. Pitaevskii, Inst. for Physical Problems, Moscow USSR. for the series Modern Problems in Condensed Matter Physics, North Holland, Amsterdam, (1990)

"Progress in Low Temperature Physics", book series, Elsevier, Amsterdam, vol.14, 15, 16


BOOK CHAPTERS WRITTEN:

Molecular Diffusion in Porous Materials, with J.C. Tarczon, A.H. Thompson, and W.A. Ellingson in Transport and Relaxation in Random Materials, edited by J. Klafter, R.J. Rubin, and M.F. Shlesinger, World Scientific, Singapore p72 (1986).


Magnetic Resonance Relaxation Analysis of Porous Media, with John C. Tarczon, S. Bhattacharja, and F. D'Orazio in Molecular Dynamics in Restricted Geometries edited by

J. Klafter and J.M. Drake, John Wiley and Son, New York., ch 11, page 311 (1989).


Order Parameter Collective Modes, with E., Varoquaux in Helium Three, edited by W.P. Halperin and L.P. Pitaevskii for the series Modern Problems in Condensed Matter Physics, North Holland, Amsterdam, ch. 7, pp 353-522 (1990).


APPEARANCES:

Testified in congress on the helium-three crisis: Hearing of the House Committee on

Science and Technology, Subcommittee on Investigation and Oversight, “Caught by Surprise: Causes and Consequences of the Helium-3 Supply Crisis.” April 22, 2010. http://www.gpo.gov/fdsys/pkg/CHRG-111hhrg57170/html/CHRG-111hhrg57170.htm


Appearance on Jon Stewart’s “The Daily Show” an interview on availability of helium, Oct. 4, 2010. http://thedailyshow.cc.com/videos/afb2gg/gas-hole

Testified in congress on the helium-four supply crisis:


Oversight Hearing on "The Helium Stewardship Act and the Path Forward” The House Committee on Natural Resources, Subcommittee on Energy and Mineral Resources, July 8, 2015. http://naturalresources.house.gov/calendar/eventsingle.aspx?EventID=398914

PUBLICATIONS:

  1. Further Observations of the γ-Cygni Radio Source, L.A. Higgs, and W.P. Halperin, Mon. Not. R. Astr. Soc. 209, 141 (1968).

  2. Static Nuclear Magnetization Thermometry in the Milli-Kelvin Region, R.A. Buhrman, W.P. Halperin, S.W. Swenterley, J.D. Reppy, R.C. Richardson, And

    W.W. Webb, Proc. 12th Int. Conf. on Low Temp. Phys. 831, (1970).

  3. Properties of 3He on the Melting Curve, W.P. Halperin, R.A. Buhrman, W.W. Webb, and R.C. Richardson, Proc. of the 13th Int. Conf. on Low Temp. Phys. 2, 139 (1972).

  4. Thermodynamic Fluctuations in "Zero Dimensional Superconductor". R.A. Buhrman, W.P. Halperin, and W.W. Webb, Proc. of the 13th Int. Conf. on Low Temp. Phys. 3, 682 (1972).

  5. Fluctuation Diamagnetism in "Zero Dimensional" Superconductor, R.A.

    Buhrman, and W.P. Halperin, Phys. Rev. Lett. 30, 692 (1973).

  6. First Order Character of the B-Transition in Liquid 3He, W.P. Halperin, R.A.Buhrman, D.M. Lee, and R.C. Richardson, Phys. Lett. 45A, 233 (1973).

  7. The Elimination of Supercooling in Superconductors by the Proximity Effect,

    New Bounds on Tc for Mg, Ag, and Au, R.A. Buhrman, and W.P. Halperin, J. Low Temp. Phys. 16, 409 (1974).

  8. Observation of Nuclear Magnetic Order in Solid 3He, W.P. Halperin, C.N. Archie, F.B. Rasmussen, R.A. Buhrman, and R.C. Richardson, Phys. Rev. Lett. 32, 927 (1974).

  9. A Thermodynamic Temperature Scale Derived from Measurements of 3He Latent heat, W.P. Halperin, C.N. Archie, F.B. Rasmussen, and R.C. Richardson, Proc. of the Euro. Phys. Soc. Topical Conf. on Liquid and Solid Helium, Haifa Israel, (John Wiley and Sons, New York) August, (1974).

  10. A Thermodynamic Temperature Scale Derived from Measurements of 3He Latent Heat, W.P. Halperin, C.N. Archie, F.B. Rasmussen, and R.C. Richardson, Phys. Rev. Lett. 34, 718 (1975).

  11. Specific Heat of the 3He Superfluid in Several Magnetic Fields, C.N. Archie,

    W.P. Halperin, F.B. Rasmussen, C.M. Gould, T.A. Alvesalo, and R.C. Richardson, Proc. of the 14th Int. Conf. on Low Temp. Phys. 1, 96 (1975).

  12. Specific Heat and Entropy of Solid 3He Below 23 mK, F.B. Rasmussen, W.P. Halperin, C.N. Archie, and R.C. Richardson, Proc. of the 14th Int. Conf. on Low Temp. Phys. 1, 513 (1975).

  13. Specific Heat of Normal and Superfluid 3He on the Melting Curve, W.P. Halperin, C.N. Archie, F.B. Rasmussen, T.A. Alvesalo, and R.C. Richardson, Phys. Rev. B13, 2124 (1976).

  14. 3He Melting Pressure Temperature Scale, W.P. Halperin, F.B. Rasmussen, C.N. Archie, and R.C. Richardson, Proc. of the 6th Int. Cryogenic Eng. Conf. IPC. Science and Technology Press, p. 194, 1976.

  15. Refrigeration by Adiabatic Demagnetization of Nuclear Spins, S.Y. Shen, J.B.

    Ketterson, and W.P. Halperin, J. Low Temp. Phys., 31, 193 (1978).

  16. Melting Properties of 3He: Specific Heat, Entropy, Latent heat, and Temperature,

    W.P. Halperin, F.B. Rasmussen, C.N. Archie, and R.C. Richardson, J. Low Temp. Phys. 31, 617 (1978).

  17. Fiberglass Insert to Liquid Helium Dewar, S.Y. Shen, W.P. Halperin, and J.B. Ketterson, Rev. Sci Instr. 49, 542 (1978).

  18. Very Low Temperature Search for Superconductivity in Pd, Pt, and Rh, R.A. Webb, J.B. Ketterson, W.P. Halperin, J.J. Vuillemin, and N.B. Sandesara, J. Low

    Temp. Phys. 32, 659 (1978).

  19. Carbon Powder Magnetization Thermometry for Very Low Temperatures, C.M. Bastuscheck, R.A. Buhrman, B.K. Sarma, D.B. Mast, J.B. Ketterson, and W.P. Halperin, Jour. de Phys. C6-1164 (1978).

  20. On the Use of CMN Thermometry in Specific heat Measurements Below 10 mK,

    W.P. Halperin, Jour. de Phys. 40, L-373 (1979).

  21. Observation of Conduction Electron Density Oscillations at the Surface of Platinum Particles, I. Yu, A.A.V. Gibson, E.R. Hunt, and W.P. Halperin, Phys. Rev. lett. 44, 348 (1980).

  22. Spin Glass Behavior of CoGa Compounds, M.W. Meisel, W.P. Halperin, Y. Ochai, and J.O. Brittain, J. Phys. F: Metals Phys. 10, L105 (1980).

  23. Measurements of High Frequency Sound Propagation in 3He-B, D.B. Mast, B.K. Sarma, J.R. Owers-Bradley, I.D. Calder, J.B. Ketterson, and W.P. Halperin, Phys. Rev. Lett. 45, 266 (1980).

  24. Group Velocity Spectroscopy of Collective Modes in 3He-B, I.D. Calder, D.B. Mast, B.K. Sarma, J.R. Owers-Bradley, J.B. Ketterson, and W.P. Halperin, Phys. Rev. Lett. 45, 1866 (1980).

  25. NMR Study of a Smectic A-Smectic B Transition, J.R. Owers-Bradley, I.D. Calder, J.B. Ketterson, and W.P. Halperin, Molecular Crystals and Liquid Crystals 76, 175 (1981).

  26. NMR Study of Pure and Doped β-LiAl, K. Kishio, J.R. Owers-Bradley, W.P. Halperin, and J.O. Brittain, Solid State Ionics, 42, 1031 (1981).

  27. Simple Wide Temperature Range AC Susceptometer, J.R. Owers-Bradley, Wen- Sheng Zhou, and W.P. Halperin, Rev. of Sci Instr. 52, 1106 (1981).

  28. Versatile Pulsed RF Hetreodyne Spectrometer, A.A.V. Gibson, J.R. Owers- Bradley, I.D. Calder, J.B. Ketterson, and W.P. Halperin, Rev. Sci. Instr. 52, 1509 (1981).

  29. The Micro-Electronic Structure of Platinum Particles Investigated by NMR, I. Yu,

    and W.P. Halperin, J. Low Temp. Phys. 45, 189 (1981).

  30. NMR Study of Pure and Doped β-LiAl, K. Kishio, J.R. Owers-Bradley, W.P. Halperin, and J.O. Brittain, J. Phys. Chem. of Solids, 5,425 (1981).

  31. Investigation of Platinum Particles by Nuclear Magnetic Resonance, I. Yu, and

    W.P. Halperin, J. Chimie Physique, 78, 901 (1981).

  32. Interplanar Magnetic Coupling in Cu/Ni Composition Modulated Alloys, Wen-

    Sheng Zhou, H.K. Wong, J.R. Owers-Bradley, and W.P. Halperin, Physica 108B, 953 (1981).

  33. Magnetic Phase Diagram of Slow Cooled β-Phase CoGa Alloys, M.W. Meisel, Wen-Sheng Zhou, J.R. Owers-Bradley, W.P. Halperin, Y. Ochai, and J.O. Brittain, Physica 107B, 249 (1981).

  34. NMR Study of Platinum Microcrystals and Application to Thermometry, I. Yu, and W.P. Halperin, Physica 107B, 329 (1981).

  35. Measurements of the Acoustic Impedance of Superfluid 3He-B, D.B. Mast, J.R. Owers-Bradley, W.P. Halperin, I.D. Calder, B.K. Sarma, and J.B. Ketterson, Physica 107B, 953 (1981).

  36. Magnetic Properties of CoGa Alloys and the Transition from Spin Glass to Ferromagnetism, M.W. Meisel, Wen-Sheng Zhou, J.R. Owers-Bradley, Y. Ochai,

    J.O. Brittain, and W.P. Halperin, J. Phys. F: Metals Phys. 12, 317 (1982).

  37. Acoustic Order Parameter Mode Spectroscopy in Superfluid 3He-B, W.P. Halperin, Physica 109&110B, 1596 (1982).

  38. Resolution of New Structure in the Collective Mode Spectrum of Superfluid 3He- B, B.S. Shivaram, M.W. Meisel, B.K. Sarma, D.B. Mast, W.P. Halperin and J.B. Ketterson, Phys. Rev. lett. 49, 1646 (1982).

  39. Observation of a New Resonance in the Collective Mode Spectrum of 3He-A,

    M.W. Meisel, B.S. Shivaram, B.K. Sarma, J.B. Ketterson, and W.P. Halperin, Phys. Rev. Lett. 50, 361 (1983).

  40. Non-Linear Zeeman Shifts in the Collective Mode Spectrum of 3He-B, B.S. Shivaram, M.W. Meisel, Bimal K. Sarma, W.P. Halperin and J.B. Ketterson, Phys. Rev. Lett. 50, 1070 (1983).

  41. Equilibrium Magnetic Behavior in CoGa Spin Glass, Wen-Sheng Zhou, M.W. Meisel, J.R. Owers-Bradley, W.P. Halperin, Y. Ochai, and J.O. Brittain, Phys. Rev. 27B, 3119 (1983).

  42. Magnetic Field Study of the Squashing Collective Mode in 3He-B, M.W. Meisel,

    B.S. Shivaram, Bimal K. Sarma, D.B. Mast, J.B. Ketterson, and W.P. Halperin, Phys. Rev. 27B, 6982 (1983).

  43. Study of Proton Diffusion in NH4+-H3O+ β"-Alumina Using a Pulsed-Field Gradient NMR Method, Y.-T. Tsai, S. Smoot, D.H. Whitmore, J.C. Tarczon, and

    W.P. Halperin, Solid State Ionics, 9/10, 1033 (1983).

  44. Study of Protonic Diffusion in Hydrogen Uranyl Phosphate Using a Pulsed-Field

    Gradient NMR Method, Y.-T. Tsai, W.P. Halperin, and D.H. Whitmore, J. of Solid State Chemistry, 50, 263 (1983).

  45. Ortho-Para Conversion of Hydrogen in Copper as Origin of Time Dependent Heat Leaks, M. Schwark, F. Pobell, W.P. Halperin, Ch. Buchal, J. Hanssen, M. Kubota,

    R.M. Mueller, J. Low Temp. Phys. 53, 685 (1983).

  46. Zero Sound Measurements Near the Pair-Breaking Edge in Low Pressure 3He-B,

    M.W. Meisel, B.S. Shivaram, B.K. Sarma, J.B. Ketterson, and W.P. Halperin, Phys.Lett. 98A, 437 (1983).

  47. Acoustic Impedance Investigations of the Collective Modes of 3He, J.B. Ketterson, B.S. Shivaram, M.W. Meisel, B.K. Sarma, and W.P. Halperin, IEEE Ultrasonics Symposium, p. 1074 (1983).

  48. Probing Collective Modes of Superfluid 3He with Zero Sound, J.B. Ketterson,

    B.S. Shivaram, M.W. Meisel, B.K. Sarma, and W.P. Halperin, AIP Conf. Proc.

    103, 288 (1983).

  49. A Low Temperature Calorimetric Investigation of CoGa Spin-Glass, H. Akbarzadeh, P.H. Keesom, M.W. Meisel, and W.P. Halperin, Phys. Rev. 29B, 2622 (1984).

  50. Explanation of the Excess Attenuation Near the Pair Breaking Edge in 3He-B,

    M.W. Meisel, B.S. Shivaram, Bimal K. Sarma, J.B. Ketterson, W.P. Halperin and

    P. Wölfle, Proc. of the 17th Int. Conf. Low Temp. Phys. 2, 757 (1984).

  51. Interaction Effects and Collective Modes in Superfluid 3He, B.S. Shivaram, M.W. Meisel, B.K. Sarma, W.P. Halperin and J.B. Ketterson, Proc. of the 17th Int. Conf. Low Temp. Phys. 2, 759 (1984).

  52. Dispersion Induced Splitting of Order Parameter Collective Modes in Superfluid

    3He-B, P.N. Brusov, V.N. Popov, B.S. Shivaram, M.W. Meisel, B.K. Sarma,

    W.P. Halperin and J.B. Ketterson, Proc. of the 17th Int. Conf. Low Temp. Phys.

    2, 779 (1984).

  53. Li Self Diffusion in Pure and Doped β-LiAl Using Pulsed Field Gradient NMR, S.C.Chen, John C. Tarczon, W.P. Halperin, and J.O. Brittain, J. Phys. Chem. of Solids 46, 895 (1985).

  54. Nuclear Magnetic Resonance Study of the Electronic Structure in the Copper

    Niobium Superlattice, M. Yudkowsky, W.P. Halperin, and Ivan K. Schuller, Phys. Rev. B31, 1637 (1985).

  55. Interpretation of NMR Diffusion Measurements in Uniform and Nonuniform

    Field Profiles, John C. Tarczon and W.P. Halperin, Phys. Rev. B32, 2798 (1985).

  56. Atomic Transport Properties of Intermetallic Compounds β-LiAl and β-LiIn, S.C. Chen, John C. Tarczon, W.P. Halperin, and J.O. Brittain, Proc. of the sixth Risφ Int. Conf. on Materials Science, Transport Structure Relations in Fast Ion and Mixed Conductors, Sept. 9-13, (1985).

  57. Magnetic Field Investigation of the Acoustic Impedance Resonance Near 2Δ(T) in

    3He-A, M.W. Meisel, B.S. Shivaram, B.K. Sarma, J.B. Ketterson, and W.P. Halperin, Phys. Lett. 110A, 49 (1985).

  58. Influence of Stoichiometry and the Nature of the Spinel-Block Stabilizing

    Elements on Proton Transport in Solid Electrolytes with the β" Alumina structure,

    S.W. Smoot, W.P. Halperin, and D.H. Whitmore, Solid State Ionics, 18-19, 687 (1986).

  59. Sound Propagation Experiments in a Magnetic Field in Superfluid 3He-B, B.S. Shivaram, M.W. Meisel, B.K. Sarma, W.P. Halperin, and J.B. Ketterson, J. Low Temp. Phys. 63, 57 (1986).

  60. Quantum Size Effects in Metallic Powders, W.P. Halperin, Rev. Mod. Phys. 58, 533 (1986).

  61. Molecular Diffusion in Porous Materials, J.C. Tarczon, A.H. Thompson, W.A.

    Ellingson, and W.P. Halperin, in Transport and Relaxation in Random Materials, ed J. Klafter, R.J. Rubin, and M.F. Shlesinger, World Scientific, Singapore p72- 85 (1986).

  62. Transition of Local Moments Coupled to Itinerant Electrons in the Quasi-one

    Dimensional Conductor: Cu(pc)I, M.Y. Ogawa, B.M. Hoffman, S. Lee, M. Yudkowsky, and W.P. Halperin, Phys. Rev. Lett. 57, 1177 (1986).

  63. Sound Velocity in Highly Polarized 3He, G. Bonfait, L. Puech, W.P. Halperin, and B. Castaing, Europhys. Lett. 3, 489 (1987).

  64. Strongly polarized 3He: Polarizability and Sound Velocity, G. Bonfait, L. Puech,

    W.P. Halperin, and B. Castaing, Can. J. of Phys. 65, 1426 (1987).

  65. One-dimensional Magnetism in Copper Phthalocyanine, S. Lee, M.Yudkowsky,

    W.P. Halperin, M.Y. Ogawa, and B.M. Hoffman, Phys. Rev. B35, 5003 (1987).

  66. Magnetic Transitions in a Molecular Metal with Embedded Local Moments: Cu(pc)I, M.Y. Ogawa, S.M. Palmer, J. Martinsen, J.L. Stanton, B.M. Hoffman,

    J.A. Ibers, S. Lee, M. Yudkowsky, and W.P. Halperin, Synth. Metals 19, 781

    (1987).

  67. Alterations in Magnetic Characteristics Produced by Intracellular Particles, R.T. Gordon, W.P. Halperin, D. Gordon, and A.J. Freeman, J. Biological Physics 14, 77 (1986).

  68. Energy Gap and Korringa Constant in the High Temperature Superconductor La1.83Sr0.17CuO4 determined by NMR, M. Lee, M. Yudkowsky, W.P. Halperin, , J.Thiel, S.-J. Hwu, and K.R. Poeppelmeier, Phys. Rev. B36, 2378 (1987).

  69. Spin Lattice Relaxation in the Normal and Superconducting States of a High Tc Superconductor, M. Lee, M. Yudkowsky, W.P. Halperin, J. Thiel, S.-J. Hwu, and

    K.R. Poeppelmeier, J. Jour. Appl. Phys. 26, 1019 (1987).

  70. Evidence for a One-Dimensional Indirect Interaction Between Localized

    Moments in Copper Phthalocyanine Iodide Mediated by Itinerant Electrons, M.Y. Ogawa, S. Liu, B.M. Hoffman, M.Lee, S. Lee, M. Yudkowsky, M. Lovellette, and

    W.P. Halperin, J. Jour. Appl. Phys. 26, 841 (1987).

  71. Vacancy-Antistructure Defect Interaction Diffusion in β-LiAl and β-LiIn, J.C.Tarczon, W.P. Halperin, S.C. Chen, J.O. Brittain, Materials Sci. and Eng. A101, 99 (1988).

  72. NMR and Quantum effects in Metal Particles, W.P. Halperin, and I. Yu, Proc. of

    the Mat. Res. Soc.111,79 (1988).

  73. Magnetic Resonance Relaxation Analysis of Porous Media, W.P. Halperin, F. D'Orazio, S. Bhattacharja, and J.C. Tarczon, in Molecular Dynamics in Restricted Geometries edited by J. Klafter and J.M. Drake, John Wiley and Sons, New York. ch 11, page 311(1989).

  74. High Resolution Phase Velocity Measurements in a Short Path Length Acoustical

    Cavity, P.J. Hamot, H.H. Hensley, and W.P. Halperin, J. Low Temp. Phys. 77, 429 (1989).

  75. Order Parameter Collective Modes in Superfluid 3He, W.P. Halperin and E. Varoquaux, in Helium Three, Modern Problems in Condensed Matter Physics, edited by W.P. Halperin and L. Pitaevskii, North Holland, Amsterdam. ch. 7, pp 353-522 (1990).

  76. Preparation, Characterization, and Low Temperature Transition of Cu(tatbp)I, a New Porphyrinic Conductor with Local Moments Coupled to Itinerant Charge Carriers, K. Liou, M.Y. Ogawa, T.P. Newcomb, G. Quirion, M. Lee, M. Poirier,

    B.M. Hoffman, J. Ibers, and W.P. Halperin, Inorg. Chem. 28, 3889 (1989).

  77. Enhanced Self-Diffusion of Water in Restricted Geometry, F. D'Orazio, S. Bhattacharja, W.P. Halperin, and R. Gerhardt, Phys. Rev. Lett.63, 43 (1989).

  78. Self-Diffusion and Ionic Transport in PPO-LiSO3CF3, S.E. Lindsey, D.H. Whitmore, W.P. Halperin, and J.M. Torkelson, Polymer Preprints, Amer. Chem. Soc. 30, 442 (1989).

  79. Application of Nuclear Magnetic Resonance Pore Stucture Analysis to Porous Slica Glass, F.D'Orazio, J.C. Tarczon, W.P. Halperin, K. Eguchi, and T. Mizusaki, J. Appl. Phys. 65, 742, (1989).

  80. Internal Structure of Porous Silica: Characterization by Nuclear Magnetic Resonance, S. Bhattacharja, F. D'Orazio, J. C. Tarczon, W.P. Halperin, and R. Gerhardt, J. Am. Ceram. Soc.72, 2126 (1989).

  81. Microwave Absorption of Aligned Crystalline Grains of YBa2Cu3O7-x, M. Poirier, G. Quirion, and B. Quirion, F. D'Orazio, J. P. Thiel, W.P. Halperin, and

    K.R. Poeppelmeier, J Appl. Phys. 66, 1261 (1989).

  82. Cu(tatbp)I and [Cu(tatbp)]3[ReO4.(C10H7Cl): Long Range Cu-Cu Couplings in Quasi One-dimensional Molecular Metals M.R. Godfrey, K. Liou, T. Newcomb,

    W.P. Halperin, B. Hoffman, and J.A. Ibers, Synthetic Metals 29, F51 (1989).

  83. Thallium Magnetic Resonance in Superconducting Tl2Ba2Ca2Cu3O10+δ

    M. Lee, Y.-Q.Song, W.P. Halperin, L.M. Tonge, T.J. Marks, H.O. Marcy and

    C.R. Kannewurf, Phys. Rev. B40, 817 (1989).

  84. Fluid Transport in Partially Filled Porous Sol-gel Silica Glass, F.D'Orazio, S. Bhattacharja, W.P. Halperin, and R. Gerhardt, Phys. Rev. B42, 6503 (1990).

  85. Molecular Diffusion and Nuclear Magnetic Resonance Relaxation in Unsaturated Porous Silica Glass, F.D'Orazio, S. Bhattacharja, W.P. Halperin, K. Eguchi, and

    T. Mizusaki, Phys. Rev. B42, 9810 (1990).

  86. Relaxation and Dynamical Properties of Water in Partially Filled Porous Materials Using NMR Techniques, W.P. Halperin, S. Bhattacharja, and F.D'Orazio, Magnetic Resonance Imaging 9, 733 (1991).

  87. Korringa Behavior for Cu(2) in YBa2Cu3O6.98, Y.-Q Song, M. Lee, N.Tea, F. D'Orazio, S. Bhattacharja, W.P. Halperin, J.P. Thiel, K.R. Poeppelmeier, U. Welp, G. Crabtree, and M.M. Fang, Physica B165&166 1301 (1990).

  88. High Resolution Acoustic Measurements by Path Length Modulation, P.J. Hamot,

    H.H. Hensley, Y. Lee, and W.P. Halperin, Physica B165&166 127 (1990).

  89. Two Electronically Distinct Copper Sites in La2-xSrxCuO4-δ Compounds for 0.10<x<0.20, M.A. Kennard, Y.-Q Song, K.R. Poeppelmeier, and W.P. Halperin, Chemistry of Materials 3, 672, (1991).

  90. Local Symmetry of Copper Sites in La2-xSrxCuO4,Y.-Q. Song, M.A. Kennard, M. Lee, K.R. Poeppelmeier, and W.P. Halperin, Phys. Rev. B. 44, 7159 (1991).

  91. Magnetic Flux Lattice Anisotropy of Tl2Ba2Ca2Cu3O10+δ by 205Tl Nuclear Magnetic Resonance, Y.-Q. Song, M. Lee, W.P. Halperin, L.M.Tonge, and T.J.Marks, Phys. Rev. B 44, 914 (1991).

  92. Determination of Magnetic Penetration Depth from Saddle Point Field Analysis in Tl2Ba2Ca2Cu3O10+δ, Y.-Q. Song, M. Lee, W.P. Halperin, L.M.Tonge, and

    T.J.Marks, Phys. Rev. B45, 4945 (1992).

  93. Electronic Spin Susceptibility in Superconducting YBa2Cu3O7 From Nuclear Spin-Spin Coupling, Y.-Q. Song and W.P. Halperin, Physica C 191,131 (1992).

  94. Measurements of the Magnetic Susceptibility of Normal Fluid 3He at Very Low Temperatures, H.H. Hensley, Y. Lee, P. Hamot, T. Mizusaki, and W.P. Halperin, J. Low Temp. Phys. 90, 149 (1993).

  95. Accurate Determination of the Landau Parameter Foa For 3He, H.H. Hensley, Y. Lee, P. Hamot, T. Mizusaki, and W.P. Halperin, J. Low Temp. Phys. 89, 501, (1992).

  96. Measurement of the g-Shift in Superfluid 3He-B, H.H. Hensley, G.F. Moores,

    M.R. Rand, T.M. Haard, J.B. Kycia, P. Hamot, Y. Lee, and W.P. Halperin, J.

    Low Temp. Phys. 89, 505, (1992).

  97. Magnetic Susceptibility Anisotropy of Grain Aligned Oxygen Deficient YBa2Cu3O7 M. Lee, N. Tea, Y.-Q Song, W.P. Halperin, J. Thiel, M.A. Kennard,

    K.R. Poppelmeier, M.M. Fang, and U. Welp, Physica C, 201, 95 (1992).

  98. Spin Susceptibility in the La2-xSrxCuO4 System from Underdoped to Overdoped Regimes, Y.Q. Song, M.A. Kennard, K.R. Poeppelmeier, and W.P. Halperin, Phys. Rev. Lett., 70, 3131 (1993).

  99. Microstructure Determination of Cement Pastes by NMR and Conventional Technqiues, Sankar Bhattacharja, Mosongo Maoukwa, Franco D'Orazio, Jyh- Yuar Jehng, and W.P. Halperin, Advanced Cement Based Materials, 1, 67, (1993).

  100. Surface Spin Diffusion in Platinum Nanometer-sized Crystals, I.Yu and W.P. Halperin, Phys. Rev. B, 47, 15830 (1993).

  101. 195Pt Spin Dynamics and Knight Shift in Single Crystals of UPt3. M. Lee, G. Moores, Y.-Q. Song, W.P. Halperin, W.W. Kim, and G.R. Stewart, Phys. Rev. B, 48, 7392 (1993).

  102. Song et al. reply to comment on, “Low Temperature Fluctuations of Vortices in

    Layered Superconductors”, Phys. Rev. Lett. 72, 177 (1994).

  103. Low Temperature Fluctuations of Vortices in Layered Superconductors, Y.-Q. Song, W.P. Halperin, L. Tonge, T.J. Marks, M. Ledvij, V. Kogan, and L.N. Bulaevskii, Phys. Rev. Lett., 70, 3127 (1993).

  104. High Resolution Measurements of the Larmor Frequency in Normal-liquid 3He,

    T.M. Haard, J.B. Kycia, M.R. Rand, H.H. Hensley, Y. Lee, P.J. Hamot, D.T. Sprague and W.P. Halperin, Phys. Rev. Lett. 72, 860 (1994).

  105. High Resolution Nuclear Magnetic Resonance of Superfluid 3He-B, J.B.Kycia,

    T.M. Haard, M.R. Rand, H.H. Hensley, G.F. Moores, Y. Lee, P.J. Hamot, D.T. Sprague, W.P. Halperin and E.V.Thuneberg, Phys. Rev. Lett. 72, 864 (1994).

  106. Surface Magnetic Relaxation in Cement Pastes, K.S. Mendelson, W.P. Halperin,

    J.-Y. Jehng, and Y.-Q. Song, Magnetic Resonance Imaging, 12, 207 (1994).

  107. Application of Spin-spin Relaxation to Measurement of Surface Area and Pore Size Distributions in a Hydrating Cement Paste,W.P. Halperin, J.-Y. Jehng, and Y.-Q. Song, Magnetic Resonance Imaging, 12, 169 (1994).

  108. Low Temperature Vortex Dynamics in a High Temperature Superconductor, Y.-

    Q. Song, S. Tripp, W.P. Halperin, L. Tonge and T.J. Marks, Phys. Rev. B, 50, 16570 (1994).

  109. Pulsed NMR in Superfluid 3He-B, H.H. Hensley, M.R. Rand, T.M. Haard, J.B. Kycia, P.J. Hamot, Y. Lee, G. Moores, and W.P.Halperin, Physica B 194-196, 829 (1994).

  110. New NMR Evidence: Can an Axi-planar 3He-A Order Parameter be Ruled Out?

    M.R. Rand, H.H. Hensley, J.B. Kycia, T.M. Haard, Y. Lee, P.J. Hamot, and W.P. Halperin, Physica B 194-196, 805 (1994).

  111. Abrupt Dimensional Crossover in the Quasi-one Dimensional Conductor,

    H2(pc)I, Y. Lee, H.H. Henseley, T.M. Haard, P.J. Hamot, W.P. Halperin, J.A. Thompson, and B.M. Hoffman, Physica B 194-196, 1263 (1994).

  112. Experimental Determination of the 3He-B g-shift Pressure Dependence, T.M. Haard, J.B. Kycia, M.R. Rand, H.H. Hensley, G.F. Moores, Y. Lee, P.J. Hamot,

    W.P. Halperin, and E. Thuneberg, Physica B 194-196, 751 (1994).

  113. Dimensionality Crossover in the Transport Behavior of the Quasi-One Dimensional Conductor H2(pc)I, Y.Lee, H. H. Hensley, J. A. Thompson, K. Murata, B. M. Hoffman, T.M. Haard, P. J. Hamot, W. P. Halperin, and P. Wölfle, Eur. Phys. Lett. 36, 681 (1996).

  114. Monte Carlo Study of Magnetic Properties of a Cu1-xNix(pc)I Spin Chain, Q. Chen, D.E. Ellis, Y. Lee, W.P. Halperin, J.A. Thompson, B.M. Hoffman, J.Magn. Magn. Mat.152, 139-151 (1996).

  115. First- and Zero-sound Velocity and Fermi Liquid Parameter F2s in Liquid 3He Determined by a Path Length Modulation Technique, P.J. Hamot, Y. Lee, D.T. Sprague, T.M. Haard, J.B. Kycia, M.R. Rand, and W.P. Halperin, Jour. Low Temp. Phys.99, 651 (1995).

  116. Homogeneous Equal-Spin Pairing Superfluid State of 3He in Aerogel, D.T. Sprague, T.M. Haard, J.B. Kycia, M.R. Rand, Y.Lee, P.J.Hamot and W.P. Halperin, Phys. Rev. Lett. 75, 661 (1995).

  117. Nuclear Magnetic Resonance of 3He Superfluid Confined in High Porosity Aerogel, D.T. Sprague, T.M. Haard, J.B. Kycia, M.R. Rand, Y. Lee, P.J. Hamot and W.P.Halperin, Jour. Low Temp. Phys., 101,185 (1995).

  118. The Growth and Characterization of High Quality UPt3 Crystals, J.B. Kycia, B.M. Davis, J.I. Hong, M.W. Meisel, D.N. Seidman, and W.P. Halperin, Jour. Low Temp. Phys.101, 623 (1995).

  119. Pore Structure of Hydrating Cement Paste by Magnetic Resonance Relaxation Analysis and Freezing, J.Y. Jehng, D.T. Sprague, and W.P. Halperin, Magnetic Resonance Imaging, 14, 785 (1996).

  120. Nonlinear Spin Dynamics and Magnetic Field Distortion of the Superfluid 3He-B Order Parameter, M.R. Rand, D.T.Sprague, T.M. Haard, J.B. Kycia, H.H. Hensley, Y. Lee, P.J. Hamot, D.M. Marks, W.P. Halperin, T. Mizusaki and T. Ohmi, Phys. Rev. Lett 77, 1314 (1996).

  121. 63Cu NMR in Heavily Doped La2CuO4, Y.-Q Song, A.P. Reyes, X.P. Tang, W.P. Halperin, and D. Hinks, J. Phys. Chem. Solids, 56, 1939 (1995).

  122. High Resolution Sound Velocity Measurements in Liquid 3He Using Path Length Modulation Technique, Y. Lee, P.J. Hamot, D.T. Sprague, T.M. Haard, J.B. Kycia, M.R. Rand, and W.P. Halperin, Czechoslovak Journal of Physics, 46, 59 (1996).

  123. NMR on Superfluid 3He in Aerogel, W.P. Halperin, D.T. Sprague, T.M. Haard,

    J.B. Kycia, Y. Lee,and M.R. Rand, Czechoslovak Journal of Physics, 46, 2989 (1996).

  124. Magnetic Field Suppression of 3He Superfluidity in Aerogel, D.T. Sprague, T.M. Haard, J.B. Kycia, M.R. Rand, Y. Lee, and W.P. Halperin, Czechoslovak Journal of Physics, 46, 119 (1996).

  125. UPt3 Crystal Growth and Characterization, J.B.Kycia, B.M. Davis, J.I. Hong,

    D.N. Seidman, and W.P.Halperin, Czechoslovak Journal of Physics, 46, 775 (1996).

  126. High Frequency Acoustic Measurements in Liquid 3He Near the Transition Temperature, Y. Lee, P.J. Hamot, M.W. Meisel, D.T. Sprague, T.M. Haard, J.B. Kycia, M.R. Rand, and W.P. Halperin, J. Low Temp. Phys.103, 265 (1996).

  127. Vortex melting in Polycrystalline YBa2Cu3O7 from 17O NMR, A.P. Reyes, X.P. Tang, H.N. Bachman, W.P. Halperin, J.A. Martindale, and P.C. Hammel, Phys. Rev. B 55, R14737, (1997).

  128. Effect of Magnetic Scattering on the 3He Superfluid State in Aerogel, D.T. Sprague, T.M. Haard, J.B. Kycia, M.R. Rand, Y. Lee, P.J. Hamot, and W.P. Halperin, Phys. Rev. Lett. 77, 4568 (1996).

  129. NMR Study of naturally Occurring 13C in the Haldane Gap Material Ni(C2H8N2)2NO2CLO4 A.P. Reyes, H.N. Bachman, X.P. Tang, M.W. Meisel,

    W.P. Halperin, N. Fujiwara, and T. Goto, Phys. Rev. B 55, 8079 (1997).

  130. Versatile 4K Probe and Cryogenic System for Small Bore High-Field-Bitter Magnets, A.P. Reyes, H.N. Bachman, and W.P. Halperin, Rev. of Sci. Instr. 68, 2132 (1997).

  131. Pore Structure Evolution and State of Pore Water in Hydrating Cement Paste at

    Cryogenic Temperatures, J.-Y Jehng, D.T. Sprague, S. Bhattacharja, and W.P. Halperin, Proccedings of the Fifth Int. Conf. on Space'96, ed. S.W. Johnson, Albuqurque NM, American Society of Civil Engineers, 1, 600-607 (1996).

  132. High Field Vortex Phase Diagram of YBa2Cu3O7 from 17O NMR, H.N. Bachman, A.P. Reyes, V.F. Mitrovic, W.P. Halperin, A. Kleinhammes, P. Kuhns, and W.G. Moulton, Phys. Rev. Lett. 80, 1726 (1998).

  133. Suppression of Superconductivity in UPt3 Single Crystals, J.B. Kycia, J.-I Hong,

    M.J. Graf, J.A. Sauls, D.N. Seidman, and W.P. Halperin, Phys. Rev.B 58, R603 (1998).

  134. Processing Facility for the Preparation of High Quality Crystals of Heavy Fermion and Intermetallic Compounds, B. M. Davis, J. B. Kycia, J. I. Hong, D. N. Seidman, and W. P. Halperin, Reviews of Scientific Instruments, (submitted)

  135. Neutron Diffraction Study of Cement, M.P. Fang, P.E. Sokol, J.Y. Jehng, and

    W.P. Halperin, Journal of Porous Materials, 6, 95 (1999 )

  136. Superconducting Fluctuation Effects on the Electron Spin Susceptibility in YBa2Cu3O7,, H. N. Bachman, V. F. Mitrovic, A. P. Reyes, W. P. Halperin, M. Eschrig, J. A. Sauls, A. Kleinhammes, P. Kuhns, W. G. Moulton, Phys. Rev. B 60, 7591 (1999).

  137. Superconducting Fluctuation Effects on the Spin-lattice Relaxation Rate in YBa2Cu3O6.95, V. F. Mitrovic, H. N. Bachman, W. P. Halperin, M. Eschrig, J. A. Sauls, A. P. Reyes, P. Kuhns, W. G. Moulton, Phys. Rev. Lett., 82, 2784 (1999).

  138. Anisotropic dc Magnetization of Superconducting UPt3 and Antiferromagnetic Ordering Below 20 mK, S. Schöttl, E. A. Schuberth, K. Flachbart , J. B. Kycia, J.

    1. Hong, D. N. Seidman, W. P. Halperin, J. Hufnagl, and E. Bucher, Phys. Rev. Lett. 82, 2378 (1999).

  139. New Evidence for Unconventional Superconductivity in UPt3 from Magnetic Torque Studies, S. Schöttl, E.A. Schuberth, K. Flachbart, J.B. Kycia, W.P. Halperin, A.A. Menovsky, E. Bucher, and J. Hufnagl, Phys. Rev. B, 62, 4124 (2000).

  140. Discovery of the Acoustic Faraday Effect in Superfluid 3He-B, Y.Lee, T. Haard,

    W. P. Halperin, and J.A. Sauls, Nature, 400, 431 (1999)

  141. The Pathlength Distribution of Simulated Aerogels, T.M. Haard, G. Gervais, R. Nomura, and W.P. Halperin, Physica B 284, 289 (2000).

  142. Acoustic Faraday Effect in Superfluid 3He-B, Y.Lee, T. Haard, J. A. Sauls, and

    W. P. Halperin, Physica B 280, 106 (2000).

  143. Magneto-Acoustic Rotation of Transverse Waves in 3He-B, J. A. Sauls, Y.Lee,

    T. Haard,, and W. P. Halperin, Physica B 284, 267 (2000).

  144. Low Frequency Broadband NMR on UPt3 using DC SQUIDs, Junyun Li, M. Digby, A. Casey, C. Lusher, B. Cowan, J. Saunders, D. Drung, T. Schurig, J.B. Kycia, J.I. Hong, D.N. Seidman, W.P. Halperin, Physica B 280, 174 (2000).

  145. Magnetic Study of the UPt3 Superconducting Phases, Stephan Schottl, Erwin A. Schuberth, Jan B. Kycia, William P. Halperin, Physica B 280, 174 (2000).

  146. 63,65Cu Nuclear Quadrupole Resonance Study of Ni-doped YBa2Cu3O7, Moohee Lee, W.P. Halperin, and K.R. Poeppelmeier, Physica C 329, 185 (2000).

  147. High Frequency Acoustics of Superfluid 3He in Aerogel, R. Nomura, G. Gervais,

    T.M. Haard, Y, Lee,Y. N. Mulders, W.P. Halperin, Phys. Rev. Lett. 85, 4325

    (2000)

  148. New Crystal Structure Assignment for the Heavy Fermion Compound UPt3, D.A. Walko, J.-I. Hong, T.V. Chandrasekhar Rao, Z. Wawrzak, D.N. Seidman, W.P. Halperin, M.J. Bedzyk, Phys. Rev. B 63, 54522 (2001).

  149. NMR Phase Noise in Bitter Magnets, E. E. Sigmund, E. S. Calder, G. W. Thomas,

    V. F. Mitrovi´ c, H. N. Bachman, W. P. Halperin, P. L. Kuhns, A. P. Reyes, J. Mag. Res. 148, 309 (2001).

  150. Polar Signal Averaging, G. W. Thomas, H. N. Bachman, E. E. Sigmund, V. F. Mitrovi´ c, E. S. Calder, and W. P. Halperin, Concepts in Mag. Res. 14, 359 (2002).

  151. Acoustics of a ‘Dirty’ Fermi Liquid: 3He in Aerogel, G. Gervais, R. Nomura,

    T.M. Haard, Y. Lee, N. Mulders, W.P. Halperin, J. of Low Temp. Phys. 122, 1 (2001).

  152. Spatially Resolved Electronic Structure Inside and Outside the Vortex Core of a High Temperature Superconductor, V. F. Mitrovi´ c, E. E. Sigmund, M. Eschrig,

    H. N. Bachman, W.P. Halperin, A.P. Reyes, P. Kuhns, W.G. Moulton, Nature

    413, 501 (2001).

  153. Lithium Transport in a Novel Macrocyclic Electrolyte , E. E. Sigmund, W.P.

    Halperin, R.E.A. Dillon, D.F. Shriver, Phys. Rev B, 64, 4201 (2001).

  154. Progressive Saturation NMR Relaxation , V. F. Mitrovi´ c, E. E. Sigmund, W.P. Halperin, Phys. Rev B, 64 024520 (2001).

  155. Modification of the Superfluid 3He Phase Diagram by Impurity Scattering, G. Gervais, R. Nomura, T.M. Haard, N. Mulders, W.P. Halperin, Phys. Rev. Lett. 87, 035701 (2001).

  156. Nucleation and interfacial coupling between pure and dirty superfluid phases of 3He, G. Gervais, K. Yawata, N. Mulders, W.P. Halperin, Phys. Rev. Lett. 88, 045505 (2002).

  157. Anomalous Behavior of Spin Fluctuations in Polycrystalline NdBa2Cu3O7, A.P. Reyes, M. Abdelrazek, P.L. Kuhns, W.G. Moulton, W.P. Halperin, and K. Kishio, Int. J. of Mod. Phys. 16, 3164, (2002).

  158. Inductive Shielding of NMR Phase Noise, E.E. Sigmund, V.F. Mitrovic, E.S.

    Calder, G.W. Thomas, H.N. Bachman, W.P. Halperin, P.L. Kuhns, and A.P. Reyes, J. Mag Res. 159, 190 (2002).

  159. The Pseudogap in YBa2Cu3O7-δ from NMR in High Magnetic Fields, V. F. Mitrovi´c, H. N. Bachman, W.P. Halperin, A.P. Reyes, P. Kuhns, W.G. Moulton, Phys. Rev. B. 66, 014511 (2002).

  160. Antiferromagnetism in the Vortex Cores of YBa2Cu3O7-δ, V. F. Mitrovi´ c, E. E.

    Sigmund, W.P. Halperin, A.P. Reyes, P. Kuhns, W.G. Moulton, Phys. Rev B. Rapid 67, 220503 (2003).

  161. Phase Diagram of the Superfluid Phases of 3He in 98 % Aerogel, G. Gervais, K. Yawata, N. Mulders, W.P. Halperin, Phys. Rev. B 66, 054528 (2002).

  162. Reply: Gervais, Yawata, and Halperin, G. Gervais, K. Yawata, and W. P.

    Halperin, Phys. Rev. Lett. 88, 209602 (2002).

  163. Heat Capacity of 3He in Aerogel, K. Yawata, T.M. Haard, N. Mulders, G. Gervais, and W. P. Halperin, Physica B 329, 327 (2003).

  164. Loss of Memory in ‘Dirty’ Superfluid 3He, G. Gervais, K. Yawata, N. Mulders, and W. P. Halperin, Physica B 329, 329 (2003).

  165. NMR Lineshape in the Vortex Lattice State of Near-Optimally Doped YBa2Cu3O7-δ, V. F. Mitrovi´c, E. E. Sigmund, and W.P. Halperin, Physica C 388-399, 629 (2003).

  166. Impurity phases of superfluid 3He in aerogel, W. P. Halperin, G. Gervais, K. Yawata, and N. Mulders, Physica B 329, 288 (2003).

167, Low Field DC SQUID Nuclear magnetic resonance on single crystal UPt3, R. Korber, A. Casey, M.E. Digby, Junyun Li, J. Luo, C.P. Lusher, J. Saunders, D. Drung, T. Schurig, J.B. Kycia, J.I. Hong, D.N. Seidman, and W.P. Halperin, Physica C 388, 523 (2003)

  1. Alkali Ion-Cryptand Interactions and Their Effects on Electrolyte Conductivity,

    Z. Ding, D.E. Ellis, R.E.A. Dillon, D.F. Shriver, E.E. Sigmund, W.P. Halperin, Phys. Chem. Chem. Phys., 5, 2072 ( 2003).

  2. Hole-burning Diffusion Measurements in High Magnetic Field Gradients,

    E. E. Sigmund, W. P. Halperin, J. Mag. Res. 163, 99 (2003).

  3. Specific heat of Disordered Superfluid 3He, H. Choi, K. Yawata, T.M. Haard, J.P. Davis, G. Gervais, N. Mulders, P. Sharma, J.A. Sauls, and W.P. Halperin, Phys. Rev. Lett. 93, 145301 (2004).

  4. The A1- A2 Transitions in Superfluid 3He in 98% Porosity Aerogel, H.C. Choi,

    A.J. Gray, C.L. Vicente, J.S. Xia, G. Gervais, W.P. Halperin, N. Mulders, and Y.

    Lee, Phys. Rev. Lett. 93, 145302 (2004).

  5. Effect of Strong Magnetic Fields on Superfuid 3He in 98% Porosity Aerogel, H.C. Choi, A.J. Gray, C.L. Vicente, J.S. Xia, G. Gervais, W.P. Halperin, N. Mulders, and Y. Lee, J. Low Temp. Phys. 138, 107 (2004).

  6. AB Transition of Superfluid in Aerogel and the Effect of Anisotropic Scattering,

    C.L. Vicente, H.C. Choi, J.S. Xia, W.P. Halperin, N. Mulders, and Y. Lee, Phys.

    Rev. B 72, 094519 (2005).

  7. Acoustic Spectroscopy of Superfluid 3He in Aerogel, J.P. Davis, H. Choi, J. Pollanen, W.P. Halperin, AIP Proceedings 850, 239 (2006).

  8. Compressed Silica Aerogels for the Study of Superfluid 3He in Aerogel, J. Pollanen, H. Choi, J.P. Davis, S. Blinstein, T.M. Lippman, L.B. Lurio, N. Mulders, W.P. Halperin, AIP Proceedings, AIP Proceedings 850, 237 (2006).

  9. Specific Heat of Disordered 3He,, H. Choi, J.P. Davis, J. Pollanen, N. Mulders,

    W.P. Halperin, AIP Proceedings 850, 241 (2006).

  10. The Stokes-Einstein Relation in Supercooled Aqueous Solutions of Glycerol, B. Chen, E.E. Sigmund, and W.P. Halperin, Phys. Rev. Lett. 96, 145502 (2006).

  11. Surface Specific Heat and Andreev Bound States, H. Choi, J.P. Davis, J. Pollanen,

    and W.P. Halperin, Phys. Rev. Lett. 96, 125301 (2006).

  12. Collective Modes and f-wave Pairing Interactions in Superfluid 3He, J.P. Davis,

H. Choi, J. Pollanen, and W. P. Halperin, Phys. Rev. Lett. 97, 115301 (2006).

182. Analysis of Strong-Coupling Parameters for Superfluid 3He, H. Choi, J.P. Davis, J. Pollanen, T.M. Haard, W.P. Halperin, J. Low Temp. Phys., 148, 507 (2007).

  1. Imaginary Squashing Mode Spectroscopy of Helium Three B; J.P. Davis,

    H. Choi, J. Pollanen, W.P. Halperin, J. Low Temp. Phys. 148, 501 (2007).

  2. Anisotropic Aerogels for Studying Superfluid 3He, J. Pollanen, S. Blinstein, H. Choi, J.P. Davis, T.M. Lippman, L.B. Lurio, W.P. Halperin, J. Low Temp. Phys. 148, 579 (2007).

  3. Magnetoresistance of UPt3, T.M. Lippman, J.P. Davis, H. Choi, J. Pollanen, and

    W.P. Halperin, J. Low Temp. Phys. 148, 863 (2007).

  4. Focus on Correlated Electrons, Magnetism and Superconductivity in High Magnetic Fields, W. P. Halperin, A.H. Lacerda, and N. Miura, New J. Phys. 8 doi:10.1088/1367-2630/8/9/E03 (2006).

  5. Anisotropy and Penetration Depth of MgB2 from 11B NMR, B. Chen, P. Sengupta, W.P. Halperin, E.E. Sigmund, V.F. Mitrovic, M.H. Lee, B.K. Cho, New J. Phys. 8, 274 (2006).

  6. Two-dimensional Superconductivity, B. Chen, W.P. Halperin, P. Guptasarma, D.G. Hinks, V.F. Mitrovic, A.P. Reyes, and P. Kuhns, Nature Physics 3, 239 (2007).

  7. Strong Coupling Corrections in Ginzburg-Landau Theory of Superfluid 3He, H. Choi, J.P. Davis, J. Pollanen, T.M. Haard, and W.P. Halperin, Phys. Rev. B, 75, (2007).

  8. Magneto-Acoustic Spectroscopy in Superfluid 3He-B, J.P. Davis, H. Choi, J. Pollanen, and W. P. Halperin, Phys. Rev. Lett. 100, 015301 (2008).

  9. Globally Anisotropic High Porosity Silica Aerogels, J. Pollanen, K. Shirer, S. Blinstein, J.P. Davis, H. Choi, T.M. Lippman, L.B. Lurio, and W.P. Halperin, J. Non-Crystalline Solids 354, 4668 (2008).

  10. Intrinsic Impurity in the High Temperature Superconductor Bi2Sr2CaCu2O8+δ, Bo Chen, Sutirtha Mukhopadhyay, W. P. Halperin, Prasenjit Guptasarma, and D. G. Hinks, Phys. Rev. B 77, 052508 (2008).

  11. Discovery of an Excited Cooper Pair State in Superfluid 3He, J.P. Davis. J. Pollanen, H. Choi, J.A. Sauls, and W.P. Halperin, Nature Physics, 4, 571 (2008).

  12. Magnetoresistance of UPt3, T.M. Lippman, H. Choi, J.P. Davis, J. Pollanen, W.J. Gannon and W.P. Halperin, New Journal of Physics, 10, 043006 (2008).

  13. Superfluid Phase Stability of 3He in Axially Anisotropic Aerogel, J. Pollanen, J.P. Davis, B. Reddy, K.R. Shirer, H. Choi and W.P. Halperin, J. Phys.: Conf. Ser. 150 032084 (2009).

  14. Low Temperature Thermal Resistance for a New Design of Silver sinter heat exchanger, J. Pollanen, H. Choi, J.P. Davis, B.T. Rolfs and W.P. Halperin, J. Phys.: Conf. Ser. 150 012037 (2009).

  15. Anomalous Attenuation of Transverse Sound in 3He, J.P. Davis, J. Pollanen, H. Choi, J.A. Sauls, W.P. Halperin, and A,B, Vorontsov, Phys. Rev. Lett. 101, 085301 (2008).

  16. Impurity Effects of Aerogel in Superfluid 3He, W.P. Halperin, H. Choi, J.P. Davis, and J. Pollanen, J. Phys. Soc. Japan, 77, 111002 (2008).

  17. High Frequency Sound in Superfluid 3He -B, J.P. Davis, H. Choi, J. Pollanen and

    W.P. Halperin, Journal of Low Temperature Physics, 153, 1 (2008).

  18. Stability of the Axial Phase of Superfluid 3He in Aerogel with Globally Anisotropic Scattering, J.P. Davis, J. Pollanen, B. Reddy, K.R. Shirer, H. Choi and W.P. Halperin, Phys. Rev. B 77, 140502(R) (2008).

  19. Demonstrating Vesicoureteral Reflux by Positioning the Instillation of

    Contrast (PIC) Cystography is a Physiological Test by Manometry, N. Navai, W.P. Halperin, M. Maizels, E.B. Yerkes, J. Hagerty, W.E. Kaplan, Journal of Urology, 179, 203 (2008).

  20. Magnetic Impurities in the Pnictide Superconductor Ba1-xKxFe2As2, S. Mukhopadhyay, S. Oh, A.M. Mounce, M. Lee, W.P. Halperin, N. Ni, S.L. Bud'ko, P.C. Canfield, A.P. Reyes, and P.L. Kuhns, New J. Phys. 11, 055002 (2009).

  21. Evidence for Complex Superconducting Order Parameter Symmetry in the Low Temperature Phase of UPt3 from Josephson Interferometry, J.D. Strand, D.J. Van Harlingen, J.B. Kycia, and W.P. Halperin, Phys. Rev. Lett., 103, 197002 (2009).

  22. The Transition Between Real and Complex Superconducting Order Parameter

    Phases in UPt3, J.D. Strand, D.J. Bahr, D.J. Van Harlingen, J.P. Davis, W.J. Gannon, W.P. Halperin, Science, 328 (5984), 1368 (2010).

  23. No Lightweight Matter, W.P. Halperin, Physics World, 23, July p17 (2010).

  24. Charge Induced Vortex Lattice Instability, A.M. Mounce, S. Oh, S.

    Mukhopadhyay, W.P. Halperin, A.P. Reyes, P.L. Kuhns, K. Fujita, M. Ishikado,

    S. Uchida, Nature Physics. 7, 125 (2011).

  25. Spin-Density Wave near the Vortex Cores of Bi2Sr2CaCu2O8+y, A.M. Mounce,

    S. Oh, S. Mukhopadhyay, W.P. Halperin, A.P. Reyes, P.L. Kuhns, K. Fujita, M.

    Ishikado, S. Uchida, Phys. Rev. Lett. 106, 057003 (2011).

  26. Mass Coupling and Q-1 of Impurity-limited Normal 3He in a Torsion Pendulum,

    R.G. Bennett, N. Zhelev, A.D. Fefferman, K.Y. Fang, J. Pollanen, P. Sharma,

    W.P. Halperin, and J.M. Parpia, J. Low Temp. Phys. 162, 174-181 (2011).

  27. 75As NMR of Ba(Fe0.93Co0.07) 2As2 in High Magnetic Field, S. Oh, A.M. Mounce, S. Mukhopadhyay, W.P. Halperin, A.B. Vorontsov, S.L. Bud'ko, P.C. Canfield, Y. Furukawa, A.P. Reyes, and P.L. Kuhns, Phys. Rev. B, 83, 214501 (2011).

  28. Magnetoacoustic Spectroscopy in Superfluid 3He-B [100, 015301, (2008)]

    J.P. Davis, H. Choi, J. Pollanen, and W.P. Halperin, Physical Review Letters, 107, 079903 (2011).

  29. Nanoparticle-Loaded Aerogels and Layered Aerogels Cast from Sol-Gel Mixtures, K. Jiwon; N. Hideyuki; J. Pollanen, S. Smoukov, W.P. Halperin,

    B.A. Grzybowski, Small, 7, 2568-2572 (2011).

  30. Identification of Superfluid Phases of 3He in Uniformly Isotropic 98.2% Aerogel, J. Pollanen, J.I.A. Li, C.A. Collett, W.J. Gannon, and W.P. Halperin, Physical Review Letters, 107, 195301 (2011).

  31. Modification of the 3He Phase Diagram by Anisotropic Disorder, R.G. Bennett, N. Zhelev, E.N. Smith, J. Pollanen, W.P. Halperin, J.M. Parpia, Physical Review Letters, 107, 235504 (2011).

  32. Nuclear Magnetic Resonance Studies of Vortices in High Temperature Superconductors, A.M. Mounce, S. Oh, W.P. Halperin, Frontiers of Physics, 6 450-462 (2011).

  33. New Chiral Phases of Superfluid 3He Stabilized by Anisotropic Silica Aerogel, J. Pollanen, J.I.A. Li, C.A. Collett, W.J. Gannon, W.P. Halperin and J.A. Sauls, Nature Physics, 8, 317-320 (2012).

  34. Nonlinear field dependence and f-wave interactions in superfluid 3He, C.A. Collett, J. Pollanen, J.I.A. Li, W.J. Gannon, W.P. Halperin, Phys. Rev. B 87, 024502 (2013).

  35. Pressure Dependence of the Longitudinal Resonance Frequency of 3He Superfluid Phases in Aerogel, J.I.A. Li, J. Pollanen, C.A. Collett, W.J. Gannon, W.P. Halperin, J. Phys.: Conf. Ser. 400 012039 (2012).

  36. Magnetization in the superconducting state of UPt3 from polarized neutron diffraction, W.J. Gannon, W.P. Halperin, C. Rastovski, M.R. Eskildsen, Pengcheng Dai, and A. Stunault, Phys. Rev. B 86, 104510 (2012).

  37. Anisotropy of Silica Aerogels Induced by Small Strain, A.M. Zimmerman, M.G.

    Specht, D. Ginzburg, J. Pollanen, J.I.A. Li, C.A. Collett, W.J. Gannon, W.P. Halperin, J. Low Temp. Phys. 171, 745 (2013).

  38. Zeeman Splitting and Nonlinear Field-Dependence in Superfluid 3He, C.A. Collett, J. Pollanen, J.I.A. Li, W.J. Gannon, and W.P. Halperin, J. Low Temp. Phys. 171, 214 (2013).

  39. Magnetic field dependence of spin-lattice relaxation in the s± state of

    Ba0.67K0.33Fe2As2, S. Oh, A.M. Mounce, W.P. Halperin, C.L. Zhang, P. Dai,

    A.P. Reyes, and P.L. Kuhns, Phys. Rev. B 85, 174508 (2012).

  40. Spin pairing and penetration depth measurements from nuclear magnetic

    resonance in NaFe0.975Co0.025As, S. Oh, A.M. Mounce, J.A. Lee, W.P. Halperin,

    C.L. Zhang, S. Carr, P. Dai, Phys. Rev. B 87, 174517 (2013).

  41. Microscopic coexistence of a two-component incommensurate spin density wave with superconductivity in underdoped NaFe0.983Co0.017As, S. Oh, A.M. Mounce,

    J.A. Lee, W.P. Halperin, C.L. Zhang, S. Carr, P. Dai, A.P. Reyes, P.L. Kuhns, Phys. Rev. B 88, 134518 (2013).

  42. Evidence of unconventional low-frequency dynamics in the normal phase of Ba(Fe1-xRhx)2As2 iron-based superconductors, L. Bossoni, P. Carretta,

    W.P. Halperin, S. Oh, A. Reyes, P. Kuhns, P.C. Canfield, Phys. Rev. B 88

    100503 (2013).

  43. The Superfluid Glass Phase of 3He-A, J.I.A. Li, J. Pollanen, A.M.

    Zimmerman, C.A. Collett, W.J. Gannon, W.P. Halperin, Nature Physics 9, 775-779 (2013).

  44. Orientation of the Angular Momentum in Superfluid 3He-A in a Stretched Aerogel, J. I. A. Li, A. M. Zimmerman, J. Pollanen, C. A. Collett, W. J. Gannon, W. P. Halperin, J. Low Temp. Phys. 171, 745 (2013).

  45. Absence of static orbital current magnetism at the apical oxygen site in HgBa2CuO4+δ from NMR, A.M. Mounce, Sangwon Oh, Jeongseop A. Lee, W.P. Halperin, A.P. Reyes, P.L. Kuhns, M.K. Chan, C. Dorow, L. Ji,

    D. Xia, X. Zhao, M. Greven, Phys. Rev. Lett. 111, 187003 (2013).

  46. Enhanced self-diffusion of adsorbed methanol in silica aerogel, J.A. Lee,

    A.M. Mounce, S. Oh, A.M. Zimmerman, W.P. Halperin, Phys. Rev. B. 90, 174401 (2014).

  47. Dissipation signatures of the normal and superfluid phases in torsion

    pendulum experiments with 3He in aerogel, N. Zhelev, R.G. Bennett, E.N. Smith, J. Pollanen, W.P. Halperin, J.M. Parpia, Phys. Rev. B 89, 094513 (2014).

  48. Stability of superfluid 3He-B in compressed aerogel J.I.A. Li, A.M. Zimmerman, J. Pollanen, C.A. Collett, W.J. Gannon, and W.P. Halperin, Phys. Rev. Lett. 112, 115303 (2014).

  49. Observation of broken time-reversal symmetry in the B phase of the heavy fermion superconductor UPt3, E. R. Schemm, W. J. Gannon, C. Wishne,

    W. P. Halperin, A. Kapitulnik, Science 345, 190 (2014).

  50. The impact of helium shortages on basic research, W.P. Halperin, Nature

    Physics 10, 467 (2014).

  51. Temperature Dependence of the Magnetic Penetration Depth and Nodal Gap Structure of UPt3 from Small Angle Neutron Scattering, W. J. Gannon, W. P. Halperin, C. Rastovski, K. J. Schlesinger, J. Hlevyack, C. Steiner, M. R.

    Eskildsen, A. B. Vorontsov, J. Gavilano, U. Gasser, G. Nagy, New Journal of Physics 17, 023041 (2015).

  52. Anisotropic phases of superfluid 3He in compressed aerogel, J.I.A. Li, A.M.Zimmerman, J. Pollanen, C.A. Collett, and W.P. Halperin, Phys. Rev. Lett. (accepted) arXiv:1501.03384