Three-Dimensional Multiband d–p Model of Superconductivity in Spin-Chain Ladder Cuprate
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概要
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We study the superconductivity in the three-dimensional multiband d–p model, in which a Cu2O3-ladder layer and a CuO2-chain layer are alternately stacked, as a model of the superconducting spin-chain ladder cuprate. $ p_{z}$-Wave-like triplet superconductivity is found to be the most stable, and its dependence on interlayer coupling can explain the superconducting transition temperature dependence on pressure in real superconducting spin-chain ladder cuprates. The superconductivity may be enhanced if hole transfer from the chain layer to the ladder layer can be promoted beyond the typical transfer rate.
- 2010-06-15
著者
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Yanagisawa Takashi
Nanoelectronics Research Institute
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Koikegami Shigeru
Second Lab, LLC, Tsukuba, Ibaraki 305-0045, Japan
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Shigeru Koikegami
Second Lab, LLC, 2-32-1 Umezono, Tsukuba, Ibaraki 305-0045, Japan
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