Effective "Penetration Depth" in the Vortex State of a d-wave Superconductor
M. H. S. Amin, M. Franz, Ian Affleck
Abstract
The temperature and field dependence of the effective magnetic penetration depth in the vortex state of a d-wave superconductor, as measured by muon spin rotation experiments, is calculated using a nonlocal London model. We show that at temperatures below T* B, the linear T-dependence of the effective penetration depth crosses over to a T3-dependence. This could provide an explanation for the low temperature flattening of the effective penetration depth curves observed in a recent muon spin rotation experiment.
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