期刊
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
卷 78, 期 3, 页码 -出版社
PHYSICAL SOC JAPAN
DOI: 10.1143/JPSJ.78.034708
关键词
iron-based superconductor; FeSe; electronic structure; photoemission spectroscopy
资金
- Ministry of Education, Culture, Sports, Science and Technology
We have pet-formed soft x-ray and Ultralligh-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.
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