Disorder and superfluid density in overdoped cuprate superconductors

作者:Lee Hone N R*; Dodge J S; Broun D M
来源:Physical Review B, 2017, 96(2): 024501.
DOI:10.1103/PhysRevB.96.024501

摘要

We calculate superfluid density for a dirty d-wave superconductor. The effects of impurity scattering are treated within the self-consistent t-matrix approximation, in weak-coupling BCS theory. Working from a realistic tight-binding parametrization of the Fermi surface, we find a superfluid density that is both correlated with T-c and linear in temperature, in good correspondence with recent experiments on overdoped La-2-xSrxCuO4.

  • 出版日期2017-7-5