Abstract
We have performed a photoemission spectroscopy study of the newly discovered iron-based superconductors LaFeAsO1-xFx and LaFePO1-xFx. The valence-band spectra show a narrow Fe 3d-derived band near EF 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 LaFeAsO1-xF x to LaFePO1-xFx, the near-EF 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 |
| Publication status | Published - 2008 |
| Externally published | Yes |
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Keywords
- Electronic structure
- LaFeAsO
- Photoemission spectroscopy
ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Photoemission study of the electronic structure of 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. SUPPL. C, 2008, p. 69-71.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Photoemission study of the electronic structure of LaFeAsO 1-xFx and LaFePO1-xFx
AU - Malaeb, Walid
AU - Yoshida, Teppei
AU - Kataoka, Takashi
AU - Fujimori, Atsushi
AU - Kubota, Masato
AU - Ono, Kanta
AU - Usui, Hidetomo
AU - Kuroki, Kazuhiko
AU - Arita, Ryotaro
AU - Aoki, Hideo
AU - Kamihara, Yoichi
AU - Hirano, Masahiro
AU - Hosono, Hideo
PY - 2008
Y1 - 2008
N2 - We have performed a photoemission spectroscopy study of the newly discovered iron-based superconductors LaFeAsO1-xFx and LaFePO1-xFx. The valence-band spectra show a narrow Fe 3d-derived band near EF 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 LaFeAsO1-xF x to LaFePO1-xFx, the near-EF intensity increases reflecting the weakening of electron correlation.
AB - We have performed a photoemission spectroscopy study of the newly discovered iron-based superconductors LaFeAsO1-xFx and LaFePO1-xFx. The valence-band spectra show a narrow Fe 3d-derived band near EF 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 LaFeAsO1-xF x to LaFePO1-xFx, the near-EF intensity increases reflecting the weakening of electron correlation.
KW - Electronic structure
KW - LaFeAsO
KW - Photoemission spectroscopy
UR - http://www.scopus.com/inward/record.url?scp=57549093492&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=57549093492&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:57549093492
VL - 77
SP - 69
EP - 71
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - SUPPL. C
ER -