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

C. T. Rieck·D. Straub·K. Scharnberg
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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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C. T. Rieck, D. Straub, K. Scharnberg. 1999-01-25. Nonlocal Effects on the Surface Resistance of High Temperature Superconductors with (100) and (110) Surfaces. https://arxiv.org/abs/cond-mat/9811291

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