Electronic structure and electron correlation in LaFeAsO 1-xFx and LaFePO1-xFx

Walid Malaeb, Teppei Yoshida, Takashi Kataoka, Atsushi Fujimori, Masato Kubota, Kanta Ono, Hidetomo Usui, Kazuhiko Kuroki, Ryotaro Arita, Hideo Aoki, Yoichi Kamihara, Masahiro Hirano, Hideo Hosono

Research output: Contribution to journalArticle

77 Citations (Scopus)

Abstract

Photoemission spectroscopy is used to investigate the electronic structure of the newly discovered iron-based superconductors LaFeAsO1-xF x and LaFePO1-xFx. Line shapes of the Fe 2p core-level spectra suggest an itinerant character of Fe 3d electrons. The valence-band spectra are generally consistent with band-structure calculations except for the shifts of Fe 3d-derived peaks toward the Fermi level. From the spectra taken in the Fe 3p → 3d core-absorption region, we have obtained the experimental Fe 3d partial density of states, and explained it in terms of a band-structure calculation with a phenomenological self-energy correction, yielding a mass renormalization factor of ≲2.

Original languageEnglish
Article number093714
JournalJournal of the Physical Society of Japan
Volume77
Issue number9
DOIs
Publication statusPublished - 2008 Sep
Externally publishedYes

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electronic structure
electrons
line shape
photoelectric emission
valence
iron
shift
spectroscopy
energy

Keywords

  • Electronic structure
  • LaFeAsO
  • Photoemission spectroscopy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Malaeb, W., Yoshida, T., Kataoka, T., Fujimori, A., Kubota, M., Ono, K., ... Hosono, H. (2008). Electronic structure and electron correlation in LaFeAsO 1-xFx and LaFePO1-xFx. Journal of the Physical Society of Japan, 77(9), [093714]. https://doi.org/10.1143/JPSJ.77.093714

Electronic structure and electron correlation in LaFeAsO 1-xFx and LaFePO1-xFx. / Malaeb, Walid; Yoshida, Teppei; Kataoka, Takashi; Fujimori, Atsushi; Kubota, Masato; Ono, Kanta; Usui, Hidetomo; Kuroki, Kazuhiko; Arita, Ryotaro; Aoki, Hideo; Kamihara, Yoichi; Hirano, Masahiro; Hosono, Hideo.

In: Journal of the Physical Society of Japan, Vol. 77, No. 9, 093714, 09.2008.

Research output: Contribution to journalArticle

Malaeb, W, Yoshida, T, Kataoka, T, Fujimori, A, Kubota, M, Ono, K, Usui, H, Kuroki, K, Arita, R, Aoki, H, Kamihara, Y, Hirano, M & Hosono, H 2008, 'Electronic structure and electron correlation in LaFeAsO 1-xFx and LaFePO1-xFx', Journal of the Physical Society of Japan, vol. 77, no. 9, 093714. https://doi.org/10.1143/JPSJ.77.093714
Malaeb, Walid ; Yoshida, Teppei ; Kataoka, Takashi ; Fujimori, Atsushi ; Kubota, Masato ; Ono, Kanta ; Usui, Hidetomo ; Kuroki, Kazuhiko ; Arita, Ryotaro ; Aoki, Hideo ; Kamihara, Yoichi ; Hirano, Masahiro ; Hosono, Hideo. / Electronic structure and electron correlation in LaFeAsO 1-xFx and LaFePO1-xFx. In: Journal of the Physical Society of Japan. 2008 ; Vol. 77, No. 9.
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