Electron coherence and pairing correlations in the 2D correlated electron system

Hirokazu Tsunetsugi, Masatoshi Imada

Research output: Contribution to journalConference articlepeer-review


Single-electron spectral function and d-wave pairing correlations are calculated for the 2D t-J model by exact diagonalization including distant single-electron hoppings and three-site pair hoppings. We show that the (π, 0)-level position has a substantial effect on the pairing correlations. It is also suggested that the experimentally observed deep (π, 0)-level is due to the pairing interaction itself. We demonstrate that further enhancement of superconductivity could be achieved by the level tuning through distant hoppings.

Original languageEnglish
Pages (from-to)790-791
Number of pages2
JournalPhysica B: Condensed Matter
Publication statusPublished - 2000 Jun 1
Externally publishedYes
EventYamada Conference LI - The International Conference on Strongly Correlated Electron Systems (SCES '99) - Nagano, Jpn
Duration: 1999 Aug 241999 Aug 28

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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