Random phase approximation for superconducting states in multi-orbital Hubbard models with spin-orbit coupling

Kazutaka Nishiguchi, Tomonori Shirakawa, Hiroshi Watanabe, Seiji Yunoki

研究成果: Article

1 引用 (Scopus)

抄録

To better understand electronic and magnetic properties of superconducting (SC) states in 5d transition metal oxides, we derive an analytical formula of the dynamical correlation function for multi-orbital systems with the spin-orbit coupling (SOC), which is accessible to the experimental responses. Starting with a multi-orbital BCS Hamiltonian including the SC gap function, we introduce the dynamical correlation function in the non-interacting case. Based on the diagrammatic techniques, we derive the dynamical correlation function for the interacting case within the random phase approximation. With the help of a numerical calculation, we also show the temperature dependence of the magnetic susceptibility for two different SC states in the presence of the SOC.

元の言語English
記事番号052013
ジャーナルJournal of Physics: Conference Series
807
発行部数5
DOI
出版物ステータスPublished - 2017 4 6

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orbits
orbitals
approximation
metal oxides
transition metals
magnetic properties
magnetic permeability
temperature dependence
electronics

ASJC Scopus subject areas

  • Physics and Astronomy(all)

これを引用

Random phase approximation for superconducting states in multi-orbital Hubbard models with spin-orbit coupling. / Nishiguchi, Kazutaka; Shirakawa, Tomonori; Watanabe, Hiroshi; Yunoki, Seiji.

:: Journal of Physics: Conference Series, 巻 807, 番号 5, 052013, 06.04.2017.

研究成果: Article

Nishiguchi, Kazutaka ; Shirakawa, Tomonori ; Watanabe, Hiroshi ; Yunoki, Seiji. / Random phase approximation for superconducting states in multi-orbital Hubbard models with spin-orbit coupling. :: Journal of Physics: Conference Series. 2017 ; 巻 807, 番号 5.
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