Local magnetic moments in vortex cores and around nonmagnetic impurities in two-dimensional t-J model

Masao Ogata, Hiroki Tsuchiura, Yukio Tanaka, Satoshi Kashiwaya

Research output: Contribution to journalArticle

Abstract

Local antiferromagnetic moments in the vortex cores of high-Tc superconductors are studied using the two-dimensional t-J model. It is found that the doping dependence is important and the local moments can appear only near half-filling. However, the absence of the large resonance peak in the local density of states reported in the scanning tunneling spectroscopy is due to the smallness of the core size in high-Tc superconductors. The similar phenomena around nonmagnetic impurities are compared with the vortex case.

Original languageEnglish
Pages (from-to)1453-1454
Number of pages2
JournalPhysica B: Condensed Matter
Volume329-333
Issue numberII
DOIs
Publication statusPublished - 2003 May
Externally publishedYes

Keywords

  • Antiferromagnetism
  • High-T superconductors
  • Impurity
  • Vortex

ASJC Scopus subject areas

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

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