Dr. William Halperin

Professor

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Biography

William Halperin is a leading physicist specializing in low-temperature physics, particularly focusing on superfluid 3 and topological superconductivity. He has conducted extensive NMR studies of high-temperature superconductors and investigations into fluid transport in porous media. His recent research includes the discovery of new thermodynamic phases of superfluid 3 confined in highly porous silica aerogel, integrating practical aspects of fluid confinement with fundamental science in superfluidity. Halperin collaborates closely with Professor Sauls' theoretical group at Northwestern University and is developing a 17O NMR probe to study magnetic fluctuations linked to magnetic vortices in innovative high-temperature superconductors. His group employs advanced methods in extremely high magnetic fields, up to 40 Tesla, utilizing specialized facilities at the National High Magnetic Field Laboratory in Tallahassee, Florida. His work also involves high-resolution heat capacity methods to explore gapless superfluidity and the mechanisms of heavy-fermion superconductivity using NMR, neutron scattering, and specific heat magnetization measurements. Halperin's contributions have significantly advanced the understanding of complex superconducting materials and their properties.

Research Interests

Awards

#

Alfred P. Sloan Fellow

#2017

Fritz London Memorial Prize

2017-01-01

Requirements for Northwestern University

Doctorate Program
Requirements
GPA Requirement
Required:3
TOEFL
Total
Required:90
IELTS
Overall
Required:7
Prerequisites
U.S. Bachelor's degree or equivalent
Application Checklist
  • Online application
  • Transcripts
  • Letters of recommendation
  • Statement of purpose
  • Resume/CV
  • TOEFL/IELTS scores (if applicable)
Specialization Notes

Standard PhD requirements for TGS departments including Chemistry, Physics, and Sociology.