Theory of tunneling spectroscopy in LaFeAsO1 - x Fx

S. Onari, Y. Tanaka

Research output: Contribution to journalArticle

Abstract

We calculate the surface density of state of iron based LaFeAsO1 - x Fx superconductor. The gap function is obtained microscopically by solving the Eliashberg equation in a 5-band Hubbard model with the random phase approximation (RPA). Although the gap function has a sign change between Fermi surfaces, we cannot find zero bias conductance peak for [1 0 0] and [1 1 0]-oriented interface.

Original languageEnglish
Pages (from-to)912-914
Number of pages3
JournalPhysica C: Superconductivity and its applications
Volume469
Issue number15-20
DOIs
Publication statusPublished - Oct 15 2009

Keywords

  • Iron-based oxypnictide
  • Multi-band Hubbard model
  • Tunneling spectroscopy
  • Unconventional superconductivity

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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