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Condensed Matter > Superconductivity

arXiv:0811.1507 (cond-mat)
[Submitted on 10 Nov 2008]

Title:Electronic Structure of Superconducting FeSe Studied by High-Resolution Photoemission Spectroscopy

Authors:Rikiya Yoshida, Takanori Wakita, Hiroyuki Okazaki, Yoshikazu Mizuguchi, Shunsuke Tsuda, Yoshihiko Takano, Hiroyuki Takeya, Kazuto Hirata, Takayuki Muro, Mario Okawa, Kyoko Ishizaka, Shik Shin, Hisatomo Harima, Masaaki Hirai, Yuji Muraoka, Takayoshi Yokoya
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Abstract: We have performed soft x-ray and ultrahigh-resolution laser-excited photoemission measurements on tetragonal FeSe, which was recently identified as a superconductor. Energy dependent study of valence band is compared to band structure calculations and yields a reasonable assignment of partial densities of states. However, the sharp peak near the Fermi level slightly deviates from the calculated energy position, giving rise to the necessity of self-energy correction. We have also performed ultrahigh-resolution laser photoemission experiment on FeSe and observed the suppression of intensity around the Fermi level upon cooling.
Comments: 6 pages, 3 figures
Subjects: Superconductivity (cond-mat.supr-con)
Cite as: arXiv:0811.1507 [cond-mat.supr-con]
  (or arXiv:0811.1507v1 [cond-mat.supr-con] for this version)
  https://doi.org/10.48550/arXiv.0811.1507
Journal reference: J. Phys. Soc. Jpn. 78, 034708 (2009)
Related DOI: https://doi.org/10.1143/JPSJ.78.034708

Submission history

From: Rikiya Yoshida [view email]
[v1] Mon, 10 Nov 2008 16:00:43 UTC (1,070 KB)
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