Propeller-Like Low Temperature Fermi Surface of Ba1-xKxFe2As2 from Magnetotransport and Photoemission Measurements

被引：18

作者：

Evtushinsky, Daniil V. ^{[1
]}

Kordyuk, Alexander A. ^{[1
,2
]}

Zabolotnyy, Volodymyr B. ^{[1
]}

Inosov, Dmytro S. ^{[3
]}

Kim, Timur K. ^{[1
]}

Buechner, Bernd ^{[1
]}

Luo, Huiqian ^{[4
]}

Wang, Zhaosheng ^{[4
]}

Wen, Hai-Hu ^{[4
]}

Sun, Guoli ^{[3
]}

Lin, Chengtian ^{[3
]}

Borisenko, Sergey V. ^{[1
]}

机构：

[1] IFW Dresden, Inst Solid State Res, D-01171 Dresden, Germany

[2] Natl Acad Sci Ukraine, Inst Met Phys, UA-03142 Kiev, Ukraine

[3] Max Planck Inst Solid State Res, D-70569 Stuttgart, Germany

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

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2011年 / 80卷 / 02期

关键词：

photoemission; iron arsenides; Hall effect; electrical transport; resistivity; band structure; superconductivity;

D O I：

10.1143/JPSJ.80.023710

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The Hall coefficient of the hole-doped iron arsenide Ba1-xKxFe2As2 (BKFA) is calculated purely on the basis of the electronic structure, revealed in the angle-resolved photoemission spectroscopy (ARPES) experiments, and compared to the one measured directly. The observed agreement allows us to state that upon cooling the Fermi surface (FS) in the optimally doped BKFA gradually evolves to the propeller-like topology, on which the superconductivity develops. Persistence of the notable temperature dependence in both photoemission and magnetotransport experiments well above the spin-density-wave (SDW) transition suggests that the FS reconstruction in BKFA is partially decoupled from the emergence of static magnetism.

引用

页数：4

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