New pairing mechanism in oxide superconductors

Susumu Kurihara*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)1247-1248
Number of pages2
JournalPhysica C: Superconductivity and its Applications
Issue number2
Publication statusPublished - 1988 Jun
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics


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