Fermi Surface and Band Renormalization in (Sr,K)Fe$_2$As$_2$ Superconductor from Angle-Resolved Photoemission Spectroscopy

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dc.creatorLiu, Haiyun
dc.creatorZhang, Wentao
dc.creatorZhao, Lin
dc.creatorJia, Xiaowen
dc.creatorMeng, Jianqiao
dc.creatorLiu, Guodong
dc.creatorDong, Xiaoli
dc.creatorChen, G. F.
dc.creatorLuo, J. L.
dc.creatorWang, N. L.
dc.creatorLu, Wei
dc.creatorWang, Guiling
dc.creatorZhou, Yong
dc.creatorZhu, Yong
dc.creatorWang, Xiaoyang
dc.creatorZhao, Zhongxian
dc.creatorXu, Zuyan
dc.creatorChen, Chuangtian
dc.creatorZhou, X. J.
dc.date2008-06-30
dc.date2008-07-29
dc.date.accessioned2026-07-07T10:19:20Z
dc.date.available2026-07-07T10:19:20Z
dc.descriptionHigh resolution angle-resolved photoemission measurements have been carried out on (Sr,K)Fe$_2$As$_2$ superconductor (Tc=21 K). Three hole-like Fermi surface sheets are clearly resolved for the first time around the Gamma point. The overall electronic structure shows significant difference from the band structure calculations. Qualitative agreement between the measured and calculated band structure is realized by assuming a chemical potential shift of -0.2 eV. The obvious band renormalization suggests the importance of electron correlation in understanding the electronic structure of the Fe-based compounds.
dc.description4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0806.4806
dc.identifierhttp://arxiv.org/abs/0806.4806
dc.identifierPhys. Rev. B 78, 184514 (2008)
dc.identifierdoi:10.1103/PhysRevB.78.184514
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/174471
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleFermi Surface and Band Renormalization in (Sr,K)Fe$_2$As$_2$ Superconductor from Angle-Resolved Photoemission Spectroscopy
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