New pairing mechanism in oxide superconductors

Susumu Kurihara*

*この研究の対応する著者

研究成果: Article査読

8 被引用数 (Scopus)

抄録

A new mechanism is proposed for electron pairing in a series of oxide superconductors Ln1Ba2Cu3O7-x (LN=Y and Lanthanide element). This mechanism takes advantage of the triple plane-chain-plane structure, with essential use of antiferromagnetic interlayer superexchange and Kondo type intralayer exchange interactions. A Cooper pair is formed between two oxygen holes belonging to neighboring Cu-O planes, via singlet-triplet excitations in the localized Cu-Cu spin pairs. This mechanism is shown to be consistent with main features of various experiments. A small but finite isotope effect is also derived.

本文言語English
ページ(範囲)1247-1248
ページ数2
ジャーナルPhysica C: Superconductivity and its Applications
153-55
2
DOI
出版ステータスPublished - 1988 6月
外部発表はい

ASJC Scopus subject areas

  • 凝縮系物理学

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