Nonlocal Effects on the Surface Resistance of High Temperature Superconductors with (100) and (110) Surfaces

1998/11/19 by C. T. Rieck, D. Straub, Rieck, C. T. +3
Physics and Astronomy · #Advanced Chemical Physics Studies #Physics of Superconductivity and Magnetism #Superconducting and THz Device Technology #cond-mat.str-el #cond-mat.supr-con

paper · pdf · doi:10.48550/arxiv.cond-mat/9811291

8 pages, 6 eps figures included, typos corrected, one reference updated, to be published in Journal of Superconductivity

arxiv created 1999/01/25 · arxiv updated 2009/11/30

Abstract

The low temperature surface resistance R_s of d-wave superconductors is calculated as function of frequency assuming normal state quasiparticle mean free paths l in excess of the penetration depth. Results depend strongly on the geometric configuration. In the clean limit, two contributions to R_s with different temperature dependencies are identified: photon absorption by quasiparticles and pair breaking. The size of nonlocal corrections, which can be positive or negative depending on frequency decreases for given l as the scattering phase shift δ_N is increased. However, except in the unitarity limit δ_N = 0.5 π, nonlocal effects should be observable.

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