Electronic structure and spontaneous internal field around nonmagnetic impurities in spin-triplet chiral p-wave superconductors

Mitsuaki Takigawa, Masanori Ichioka, Kazuhiko Kuroki, Yukio Tanaka

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Abstract

The electronic structure around an impurity in spin-triplet p-wave superconductors is studied by the Bogoliubov-de Gennes theory on a tight-binding model, where we have chosen sinpx+isinpy-wave or sin(px+py)+isin(-px+py)-wave states, which are considered to be candidates for the pairing state in Sr2RuO4. We calculate the spontaneous current and the local density of states around the impurity and discuss the difference between the two types of pairing. We propose that it is possible to discriminate the two pairing states by studying the spatial dependence of the magnetic field around a pair of impurities.

Original languageEnglish
Article number224501
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume72
Issue number22
DOIs
Publication statusPublished - Dec 1 2005

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ASJC Scopus subject areas

  • Condensed Matter Physics

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