Faculty Description

• PROFESSOR
• Ph. D., University of Chicago, 1980
• http://sdphln.ucsd.edu/~jorge/jh.html
• RESEARCH: Condensed Matter Physics

• Office Location:  MH 5310
• Office Phone:  858-534-3931
• Email:  jhirsch@physics.ucsd.edu
• Administrative Contact:  Amielyn C. Diza

• We are interested in learning about the microscopic mechanisms that lead to the occurrence of collective effects in solids such as superconductivity and ferromagnetism. We believe that the essential physics of these phenomena is likely to be contained in simple models, even if the materials where these phenomena occur are very complicated. Once a plausible model is identified, we study it using various analytic and/or numerical techniques to learn about its properties and compare with experimental observations. For example, we have recently found that electron-hole symmetry breaking, i.e. electron-hole asymmetry, is likely to play a fundamental role in superconductivity, and are studying the consequences of this for optical and tunneling experiments.

• Several UCSD Physics Faculty designated American Physical Society "Outstanding Referees".
• UCSD Physicists R. C. Dynes, Benjamin Grinstein, Jorge Hirsch, Herbert Levine, Ivan K. Schuller and L. J. Sham have been designated "Outstanding Referees" by The American Physical Society.
  
  This is the first year of this very selective award, and only 534 out of our 42,000 active referees have been chosen. In subsequent years, they intend to add about 130 more each year to the list of "Outstanding Referees." The awardees chosen are truly exceptional in their contributions to the physics community by their hard work and careful attention to the peer review process. These faculty members are to be congratulated.
  
  The complete list of 534 awardees and other information about the award can be found at http://publish.aps.org/OutstandingReferees. The APS wishes to thank these awardees, for their exceptional work as anonymous referees in service to the international physics community.

• - Pairing in a tight binding model with occupation-dependent hopping rate: exact diagonalization study. With H.Q. Lin. Phys. Rev. B 52, 16155 (1995).


• - Thermoelectric Power of Superconductive Tunnel Junctions. Phys. Rev. Lett. 72, 558 (1994).


• - Superconductors that Change Color when they Become Superconducting. Physica C201, 347 (1992).


• - Superconductivity in the Transition Metal Series. With X.Q. Hong., Phys. Rev. B 46, 14702 (1992).


• - Weak Ferromagnetism in a Band Model: Application to Sc3In. Phys. Rev. B 44, 675 (1991).


• - Hole Superconductivity and the High-Tc Oxides. With F. Marsiglio, Phys. Rev. B41, 6435 (1990).


• - Spin-Split States in Metals. Phys. Rev. B 41, 6820 (1990).