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
Externally publishedYes

Fingerprint

Spectroscopy
Hubbard model
Fermi surface
spectroscopy
Superconducting materials
Fermi surfaces
Iron
iron
approximation

Keywords

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

ASJC Scopus subject areas

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

Cite this

Theory of tunneling spectroscopy in LaFeAsO1 - x Fx . / Onari, S.; Tanaka, Y.

In: Physica C: Superconductivity and its Applications, Vol. 469, No. 15-20, 15.10.2009, p. 912-914.

Research output: Contribution to journalArticle

Onari, S. ; Tanaka, Y. / Theory of tunneling spectroscopy in LaFeAsO1 - x Fx . In: Physica C: Superconductivity and its Applications. 2009 ; Vol. 469, No. 15-20. pp. 912-914.
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