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Role of spin–orbit interaction on the superconductivity in : Phase diagram under the magnetic field

✍ Scribed by Y. Yanase; M. Mochizuki; M. Ogata

Publisher
Elsevier Science
Year
2006
Tongue
English
Weight
96 KB
Volume
378-380
Category
Article
ISSN
0921-4526

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✦ Synopsis

The d-vector in possible spin triplet superconductor Na x CoO 2 Á yH 2 O is microscopically analyzed on the basis of the multi-orbital Hubbard model including the atomic spin-orbit coupling. As a result of the perturbation theory, it is shown that the d-vector is parallel to the plane when the pairing symmetry is p-wave, while both dkxy and dkz are possible in the f-wave state. We point out that the multiple phase transitions are expected under the in-plane magnetic field when the pairing symmetry is p-wave.

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