Theory of tunneling spectroscopy in LaFeAsO1 - x Fx

S. Onari; Y. Tanaka

doi:10.1016/j.physc.2009.05.097

Theory of tunneling spectroscopy in LaFeAsO_{1 - x} F_x

S. Onari, Y. Tanaka

Graduate School of Natural Science and Technology

Research output: Contribution to journal › Article › peer-review

Abstract

We calculate the surface density of state of iron based LaFeAsO_{1 - x} F_x 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 language	English
Pages (from-to)	912-914
Number of pages	3
Journal	Physica C: Superconductivity and its applications
Volume	469
Issue number	15-20
DOIs	https://doi.org/10.1016/j.physc.2009.05.097
Publication status	Published - 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

Access to Document

10.1016/j.physc.2009.05.097

Fingerprint Dive into the research topics of 'Theory of tunneling spectroscopy in LaFeAsO<sub>1 - x</sub> F<sub>x</sub>'. Together they form a unique fingerprint.

Cite this

@article{daab9b1025274f00a47b1564bb3509d6,

title = "Theory of tunneling spectroscopy in LaFeAsO1 - x Fx",

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.",

keywords = "Iron-based oxypnictide, Multi-band Hubbard model, Tunneling spectroscopy, Unconventional superconductivity",

author = "S. Onari and Y. Tanaka",

year = "2009",

month = oct,

day = "15",

doi = "10.1016/j.physc.2009.05.097",

language = "English",

volume = "469",

pages = "912--914",

journal = "Physica C: Superconductivity and its Applications",

issn = "0921-4534",

publisher = "Elsevier",

number = "15-20",

}

TY - JOUR

T1 - Theory of tunneling spectroscopy in LaFeAsO1 - x Fx

AU - Onari, S.

AU - Tanaka, Y.

PY - 2009/10/15

Y1 - 2009/10/15

N2 - 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.

AB - 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.

KW - Iron-based oxypnictide

KW - Multi-band Hubbard model

KW - Tunneling spectroscopy

KW - Unconventional superconductivity

UR - http://www.scopus.com/inward/record.url?scp=68149128390&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=68149128390&partnerID=8YFLogxK

U2 - 10.1016/j.physc.2009.05.097

DO - 10.1016/j.physc.2009.05.097

M3 - Article

AN - SCOPUS:68149128390

VL - 469

SP - 912

EP - 914

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

SN - 0921-4534

IS - 15-20

ER -