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Effective "penetration depth" in the vortex state of a d-wave superconductor
1Department of Physics, Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6.
Physical Review Letters
|September 16, 2000
Abstract:
The temperature and the field dependence of the effective magnetic penetration depth (lambdaeff) in the vortex state of a d-wave superconductor, as measured by muon spin rotation (muSR) experiments, is calculated using a nonlocal London model. We show that at temperatures below [EQUATION: SEE TEXT], the linear T dependence of lambda-2eff crosses over to a T3 dependence. This could provide an explanation for the low temperature flattening of the lambda-2eff curve observed in a recent muSR experiment.