Analysis on photoemission spectrum of superconducting FeSe

In this paper, we present the result of soft X-ray photoemission spectroscopy and its comparison with the density functional calculation. Although local density approximation seems to be a good starting point for describing the electronic structure of FeSe, the simulated spectrum poorly reproduced t...

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Bibliographic Details
Published inPhysica. C, Superconductivity Vol. 470; no. SUP1; pp. S389 - S390
Main Authors Yoshida, Rikiya, Wakita, Takanori, Okazaki, Hiroyuki, Mizuguchi, Yoshikazu, Tsuda, Shunsuke, Takano, Yoshihiko, Takeya, Hiroyuki, Hirata, Kazuto, Kato, Yukako, Muro, Takayuki, Okawa, Mario, Ishizaka, Kyoko, Shin, Shik, Harima, Hisatomo, Hirai, Masaaki, Muraoka, Yuji, Yokoya, Takayoshi
Format Journal Article Conference Proceeding
LanguageEnglish
Published Amsterdam Elsevier B.V 01.12.2010
Elsevier
Subjects
Band calculation
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electronic structure
Exact sciences and technology
FeSe
Iron chalcogenide superconductor
Photoemission spectroscopy
Physics
Properties of type I and type II superconductors
Superconductivity
FeSe
Iron chalcogenide superconductor
Photoemission spectroscopy
Band calculation
Chalcogenides
Electronic structure
Superconductors
Soft X radiation
Density functional method
Iron selenides
Local density approximation
X-ray photoelectron spectra
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Summary:In this paper, we present the result of soft X-ray photoemission spectroscopy and its comparison with the density functional calculation. Although local density approximation seems to be a good starting point for describing the electronic structure of FeSe, the simulated spectrum poorly reproduced the structure around EB=2eV. This result suggests the necessity of theoretical treatment beyond local density approximation.
ISSN:0921-4534
1873-2143
DOI:10.1016/j.physc.2009.11.172