Study of the quasiparticle spectra near the surface or nonmagnetic impurities in high-Tc superconductors

H. Tsuchiura, Y. Tanuma, Y. Tanaka, M. Ogata, S. Kashiwaya, J. Inoue

Research output: Contribution to journalConference articlepeer-review

Abstract

The local density of states (LDOS) around an impurity or surface, which can be observed in scanning tunneling spectroscopy, is studied in the two-dimensional t-t′-J model. The spatial dependence of the order parameter is numerically determined self-consistently using the Gutzwiller approximation and the Bogoliubov-de Gennes theory. It is found that the LDOS shows the zero-energy peak when the t′ term exists.

Original languageEnglish
Pages (from-to)347-352
Number of pages6
JournalSurface Science
Volume438
Issue number1-3
DOIs
Publication statusPublished - 1999 Sep 10
EventProceedings of the 1998 International Symposium on Surface and Interface: Properties of Different Symmetry Crossing 98 (ISSI PDSC-98) - Tokyo, Jpn
Duration: 1998 Nov 191998 Nov 21

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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