Electronic structure and electron correlation in LaFeAsO1-xFx and LaFePO1-xFx
Electronic structure and electron correlation in LaFeAsO1-xFx and LaFePO1-xFx
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DOI：
10.1143/jpsj.77.093714
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发表时间：
2008-09-01
影响因子：
1.7
通讯作者：
Hosono, Hideo
中科院分区：
文献类型：
--
作者：
Malaeb, Walid;Yoshida, Teppei;Hosono, Hideo
Photoemission spectroscopy is used to investigate the electronic structure of the newly discovered iron-based superconductors LaFeAsO1-xFx 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
