Pair-breaking effects in the pseudogap regime: Application to high-temperature superconductors
Journal
Physical Review B
Journal Volume
66
Journal Issue
21
Date Issued
2002
Author(s)
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 ${T}_{c},$ along with comparisons to experiment, are addressed.
Type
journal article