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Takigawa, Mitsuaki Hokkaido University
Ichioka, Masanori Okayama University
Kuroki, Kazuhiko University of Electro-Communications
Tanaka, Yukio Nagoya University
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 sin p(x)+i sin p(y)-wave or sin(p(x)+p(y))+i sin(-p(x)+p(y))-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.
Digital Object Identifer:10.1103/PhysRevB.72.224501
Published with permission from the copyright holder. This is the institute's copy, as published in Physical Review B, December 2005, Volume 72, Issue 22, Pages 6.
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Physical Review B
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