Fermi surface and band renormalization of Sr1-xKxFe2As2 from angle-resolved photoemission spectroscopy

被引：43

作者：

Liu, Haiyun ^{[1
]}

Zhang, Wentao ^{[1
]}

Zhao, Lin ^{[1
]}

Jia, Xiaowen ^{[1
]}

Meng, Jianqiao ^{[1
]}

Liu, Guodong ^{[1
]}

Dong, Xiaoli ^{[1
]}

Chen, G. F. ^{[2
]}

Luo, J. L. ^{[2
]}

Wang, N. L. ^{[2
]}

Lu, Wei ^{[1
]}

Wang, Guiling ^{[3
]}

Zhou, Yong ^{[3
]}

Zhu, Yong ^{[4
]}

Wang, Xiaoyang ^{[4
]}

Xu, Zuyan ^{[3
]}

Chen, Chuangtian ^{[4
]}

Zhou, X. J. ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Natl Lab Superconduct, Beijing 100190, Peoples R China

[2] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China

[3] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Key Lab Opt, Beijing 100190, Peoples R China

[4] Chinese Acad Sci, Tech Inst Phys & Chem, Beijing 100190, Peoples R China

来源：

PHYSICAL REVIEW B | 2008年 / 78卷 / 18期

关键词：

D O I：

10.1103/PhysRevB.78.184514

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

High-resolution angle-resolved photoemission measurements have been carried out on the (Sr,K) Fe(2)As(2) superconductor (T(c) = 21 K). Three holelike Fermi-surface sheets are resolved around the Gamma point. One electronlike Fermi surface and strong Fermi spots are observed near the M(pi,pi) point which are different from a round electron pocket expected from band calculations. This discrepancy and the observed band renormalization ask for further theoretical effort in understanding the electronic structure of the Fe-based compounds.

引用

页数：6

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