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Disorder effects on the intrinsic nonlinear current density in YBa2Cu3O7
Published
Author(s)
Brian M. Andersen, James Booth, P.J. Hirschfeld
Abstract
We present harmonic generation measurements of the intrinsic nonlinear current density j2 of (YBCO) films at temperatures close the Tc. Experiments on a range of different quality samples allow us to extract the dependence of j2 on the penetration depth of the superconductor. In order to model these results, we calculate the intrinsic nonlinear current response of d-wave superconductors in the Meissner regime in the presence of nonmagnetic impurities within the selfconsistent T-matrix approximation.
Citation
Physical Review B (Condensed Matter and Materials Physics)
Volume
17
Pub Type
Journals
Keywords
high temperature superconductor, nonlinear microwave response
Andersen, B.
, Booth, J.
and Hirschfeld, P.
(2007),
Disorder effects on the intrinsic nonlinear current density in YBa2Cu3O7, Physical Review B (Condensed Matter and Materials Physics)
(Accessed June 2, 2023)