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

Mitsuaki Takigawa; Masanori Ichioka; Kazuhiko Kuroki; Yukio Tanaka

doi:10.1103/PhysRevB.72.224501

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

Mitsuaki Takigawa, Masanori Ichioka, Kazuhiko Kuroki, Yukio Tanaka

DOI 10.1103/PhysRevB.72.224501 · Physical Review B

T1

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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.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Sr2RuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown