Skip to main content
eScholarship
Open Access Publications from the University of California

Onset of superconductivity at 107K in YBa2Cu3O7 - δ at high pressure

  • Author(s): McElfresh, MW
  • Maple, MB
  • Yang, KN
  • Fisk, Z
  • et al.
Abstract

Electrical resistivity ρ measurements under pressure have been carried out on the high-temperature superconductor YBa2Cu3O7 - δ as a function of temperature T between 1 and 300 K at various pressures between 8 kbar and 149 kbar. The superconducting transition temperature Tc increases almost linearly with pressure at the rate dTc/dP ∼- 0.13 K/kbar. The onset of Tc, defined as the temperature at which ρ(T) drops to 90% of its extrapolated normal state value, increases from ∼95 K at 8 kbar to 107 K at 149 kbar. These results suggest that higher pressures will yield yet higher values of Tc. © 1988 Springer-Verlag.

Many UC-authored scholarly publications are freely available on this site because of the UC Academic Senate's Open Access Policy. Let us know how this access is important for you.

Main Content
Current View