Superconductivity in layered materials with intralayer and interlayer couplings

Yuji Suwa; Yukio Tanaka; Masaru Tsukada

doi:10.1103/PhysRevB.39.9113

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Superconductivity in layered materials with intralayer and interlayer couplings

Yuji Suwa, Yukio Tanaka, Masaru Tsukada

DOI 10.1103/PhysRevB.39.9113 · Physical Review B

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Abstract

A study of the superconductivity of layered materials is reported. We treat very thin layers and assume two interactions, intralayer and interlayer. A two-component Ginzburg-Landau equation is derived taking into account two types of order parameters. Tc is raised by the cooperation of the two interactions. Hc2 shows anisotropic behavior not only due to the anisotropy of the one-electron state but also due to the anisotropy of the pairing interaction.