Is spin-gap behavior near Tc in cuprates an evidence for dxy pairing? A role of superconducting fluctuations

Osamu Narikiyo, Kazumasa Miyake

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The spin susceptibility at the antiferromagnetic wave vector of the normal state of high-Tc cuprates is calculated on the basis of the mode-mode coupling theory of the spin fluctuation in 2D taking the superconducting fluctuation into account. The spin-gap behavior is obtained for s or dxy pairing but not for extended-s or dx2-y2 pairing when the Fermi surface is technically "nested". This result together with the consideration on the effect of impurity scatterings may suggest dxy pairing and lead to a view point to understand the superconducting mechanism from charge-transfer fluctuations.

Original languageEnglish
Pages (from-to)333-337
Number of pages5
JournalSolid State Communications
Issue number5
Publication statusPublished - May 1994
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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