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Photoemission study of the electronic structure of LaFeAsO 1-xFx and LaFePO1-xFx

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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
URI: http://hdl.handle.net/10725/16624
URL: https://journals.jps.jp/doi/10.1143/JPSJS.77SC.69
DOI: https://doi.org/10.1143/JPSJS.77SC.69
Date: 2008
Terms of Use: This item is made available under the terms and conditions applicable to " Article ", as set forth at: http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php

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.

Citation:

Malaeb, W., Yoshida, T., Kataoka, T., Fujimori, A., Kubota, M., Ono, K., ... & Hosono, H. (2008). Photoemission Study of the Electronic Structure of LaFeAsO1-x F x and LaFePO1-x F x. Journal of the Physical Society of Japan, 77(Suppl. C), 69-71.

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