Pair-breaking effects in the Pseudogap Regime: Application to High Temperature Superconductors

Abstract

Abrikosov-Gor'kov (AG) theory, the foundation for understanding pair-breaking effects in conventional superconductors, is inadequate when there is an excitation gap (pseudogap) present at the onset of superconductivity. In this paper we present an extension of AG theory within two important, and diametrically opposite approaches to the cuprate pseudogap. The effects of impurities on the pseudogap onset temperature T* and on Tc, along with comparisons to experiment are addressed.

7 pages, 8 figures, Revtex 4

References in corpus (7)

• Discovery of microscopic electronic inhomogeneity in the high-Tc superconductor Bi2Sr2CaCu2O8+x
• Quasiparticle States around a Nonmagnetic Impurity in D-Density-Wave State of High-$T_c$ Cuprates
• Resonant Impurity States in the D-Density-Wave Phase
• Mechanism of pseudogap probed by a local impurity
• Magnetic Field Effects in the Pseudogap Phase: A Competing Energy Gap Scenario for Precursor Superconductivity
• Pairing fluctuation theory of high $T_c$ superconductivity in the presence of nonmagnetic impurities
• C-axis Response of a High-T_{c} Superconductor with D-Density Wave Order

Cited by in corpus (3)

• BCS-BEC crossover at finite temperature in the broken-symmetry phase
• Ni impurity induced enhancement of the pseudogap in cuprate high T_c superconductors
• The Pseudogap Challenge: Understanding the ab-Plane AC Conductivity below Tc