Impurity Effect on Kramer-Pesch Core Shrinkage in s-Wave Vortex and Chiral p-Wave Vortex

被引：0
作者：
Nobuhiko Hayashi
Yusuke Kato
Manfred Sigrist
机构：
[1] ETH-Hönggerberg,Institut für Theoretische Physik
[2] University of Tokyo,Department of Basic Science
来源：
Journal of Low Temperature Physics | 2005年 / 139卷
关键词：
Vortex; Vortex Core; Superconducting Phasis; Core Radius; Impurity Scattering;
D O I：
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中图分类号：
学科分类号：
摘要：
The low-temperature shrinking of the vortex core (Kramer-Pesch effect) is studied for an isolated single vortex for chiral p-wave and s-wave superconducting phases. The effect of nonmagnetic impurities on the vortex core radius is numerically investigated in the Born limit by means of a quasiclassical approach. It is shown that in the chiral p-wave phase the Kramer-Pesch effect displays a certain robustness against impurities owing to a specific quantum effect, while the s-wave phase reacts more sensitively to impurity scattering. This suggests chiral p-wave superconductors as promising candidates for the experimental observation of the Kramer-Pesch effect.
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页码：79 / 96
页数：17
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