Vortex tunneling spectra of high-Tc superconductors based on the t-J model

Hiroki Tsuchiura, Shingo Uno, Yukio Tanaka, Masao Ogata, Jun Ichiro Inoue, Satoshi Kashiwaya

Research output: Contribution to journalArticlepeer-review


The local density of states and the c-axis tunneling spectrum around a vortex core and a nonmagnetic impurity in high-Tc superconductors are studied using the two-dimensional t-J model and considering the anisotropy of the c-axis tunneling matrix elements. The order parameters are determined in a self-consistent way within the Gutzwiller approximation and the Bogoliubov-de Gennes theory. It is shown that neither the anisotropic matrix elements nor d+is state account for the recent STS data on the vortex core of Bi2Sr2CaCu2O8+δ.

Original languageEnglish
Pages (from-to)20-23
Number of pages4
JournalPhysica C: Superconductivity and its applications
Issue number1-4
Publication statusPublished - 2002 Feb 15
Externally publishedYes


  • Impurity
  • Local density of states
  • Vortex core
  • t-J model

ASJC Scopus subject areas

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


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