Photoemission study of the electronic structure of 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

doi:10.1143/JPSJS.77SC.69

Photoemission study of the electronic structure of LaFeAsO _1-xF_x and LaFePO_1-xF_x

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

Department of Applied Physics and Physico-Informatics

Research output: Contribution to journal › Article

3 Citations (Scopus)

Abstract

We have performed a photoemission spectroscopy study of the newly discovered iron-based superconductors LaFeAsO_1-xF_x and LaFePO_1-xF_x. The valence-band spectra show a narrow Fe 3d-derived band near E_F indicating the itinerant character of the Fe 3d states. In going from the undoped to F-doped compounds, all the spectra are found to shift to higher binding energies, consistent with electron doping within the rigid-band model. Also, in going from LaFeAsO_1-xF _x to LaFePO_1-xF_x, the near-E_F intensity increases reflecting the weakening of electron correlation.

Original language	English
Pages (from-to)	69-71
Number of pages	3
Journal	Journal of the Physical Society of Japan
Volume	77
Issue number	SUPPL. C
DOIs	https://doi.org/10.1143/JPSJS.77SC.69
Publication status	Published - 2008 Jan 1

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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., Usui, H., Kuroki, K., Arita, R., Aoki, H., Kamihara, Y., Hirano, M., & Hosono, H. (2008). Photoemission study of the electronic structure of LaFeAsO _1-xF_x and LaFePO_1-xF_x. Journal of the Physical Society of Japan, 77(SUPPL. C), 69-71. https://doi.org/10.1143/JPSJS.77SC.69

Photoemission study of the electronic structure of LaFeAsO _1-xF_x and LaFePO_1-xF_x. / 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. SUPPL. C, 01.01.2008, p. 69-71.

Research output: Contribution to journal › Article

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. / Photoemission study of the electronic structure of LaFeAsO _1-xF_x and LaFePO_1-xF_x. In: Journal of the Physical Society of Japan. 2008 ; Vol. 77, No. SUPPL. C. pp. 69-71.

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AU - Kubota, Masato

AU - Ono, Kanta

AU - Usui, Hidetomo

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10.1143/JPSJS.77SC.69