Band structure,Fermi surface,and superconductinggap in FeAs-based superconductors revealed by angle-resolved photoemissionspectroscopy |
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Authors: | Xing-jiang ZHOU ( ) Guo-dongLIU ( ) Hai-yunLIU ( ) LinZHAO ( ) Wen-taoZHANG ( ) Xiao-wenJIA ( ) Jian-qiaoMENG ( ) |
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Affiliation: | NationalLaboratory for Superconductivity, Beijing National Laboratory forCondensed Matter Physics, Institute of Physics, Chinese Academy ofSciences, Beijing 100190, China; |
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Abstract: | In this paper, we present a brief review on our angle-resolved photoemission measurements on the band structure, Fermi surface, and superconducting gap of the newly-discovered FeAs-based high temperature superconductors. (1) The Fermi surface of the FeAs-based compounds are characterized by the hole-like Fermi surface sheets near Γ (0, 0) and the existence of singular Fermi spots near M(π, |
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Keywords: | superconductor photoemission electronic structure Fermi surface superconducting gap |
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