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Superconductivity in the orbital degenerated Hubbard model

✍ Scribed by R.O. Zaitsev; V.A. Ivanov

Publisher
Elsevier Science
Year
1988
Tongue
English
Weight
134 KB
Volume
153-155
Category
Article
ISSN
0921-4534

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Spin and charge fluctuations and superconductivity in Na 0:35 CoO 2 Á 1:3H 2 O are studied based on a multi-orbital Hubbard model. By applying the fluctuation exchange (FLEX) approximation, we show that the Hund's-rule coupling between the Co t 2g orbitals causes ferromagnetic spin fluctuation. Trip