The resonance states around an impurity in dx2-y2-wave superconductors

Hiroki Tsuchiura, Yukio Tanaka, Masao Ogata, Satoshi Kashiwaya

Research output: Contribution to journalArticlepeer-review


We investigate the local density of states (LDOS) around a nonmagnetic impurity in the superconducting state of the two-dimensional t-t′-J model away from half-filling. The order parameters are determined self-consistently within the Gutzwiller approximation and the Bogoliubov-de Gennes theory. Similar to our previous results of the t-J model near half-filling, the zero-energy peak in the LDOS is also found when the electron-hole symmetry is broken.

Original languageEnglish
Pages (from-to)427-428
Number of pages2
JournalPhysica B: Condensed Matter
Issue numberPART I
Publication statusPublished - 2000
Externally publishedYes


  • Two-dimensional t-t′-J model
  • d-wave superconductivity

ASJC Scopus subject areas

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


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