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ID 14226
本文ファイル
著者
Kohmoto, Mahito
NDC
物理学
抄録(英)
Anisotropic pairing interactions mediated by phonons are examined in layer systems. It is shown that the screening effects become weaker when the layer spacing increases. Then the anisotropic components of the pairing interactions increase with the screening length since the momentum dependence changes. As a result, various types of anisotropic superconductivity occur depending on the parameter region. For example, p-wave superconductivity occurs when the short-range part of Coulomb repulsion is strong and the layer spacing is large. Two kinds of interlayer pairing may occur when the layer spacing is not too large. Although the phonon contribution to the d-wave pairing interaction is weaker than the p-wave interaction, it increases with the layer spacing. The relevance of the present results to organic superconductors, high-Tc cuprates, and Sr2RuO4 is discussed.
掲載誌名
Physical Review B - Condensed Matter and Materials Physics
65巻
開始ページ
174502
出版年月日
2002
出版者
American Physical Society
ISSN
1098-0121
NCID
出版者DOI
言語
英語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
publisher
権利情報
Copyright (c) 2002 The American Physical Society
関連情報URL
部局名
先端物質科学研究科