Coexistence of Fermi arcs and Fermi pockets in a high-Tc copper oxide superconductor

被引：0
|
作者：
Jianqiao Meng
Guodong Liu
Wentao Zhang
Lin Zhao
Haiyun Liu
Xiaowen Jia
Daixiang Mu
Shanyu Liu
Xiaoli Dong
Jun Zhang
Wei Lu
Guiling Wang
Yong Zhou
Yong Zhu
Xiaoyang Wang
Zuyan Xu
Chuangtian Chen
X. J. Zhou
机构：
[1] National Laboratory for Superconductivity,
[2] Beijing National Laboratory for Condensed Matter Physics,undefined
[3] Institute of Physics,undefined
[4] Chinese Academy of Sciences,undefined
[5] Technical Institute of Physics and Chemistry,undefined
[6] Chinese Academy of Sciences,undefined
来源：
Nature | 2009年 / 462卷
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摘要：
One outstanding puzzle in high-temperature cuprate superconductors relates to the 'Fermi surface pocket' that is expected to emerge when the material is slightly doped or underdoped. Such pockets were recently seen in quantum oscillation measurements. Angle-resolved photoemission (ARPES) measurements reveal Fermi arcs, that is, open-ended gapless sections in the large Fermi surface, rather than the closed loops (Fermi pockets) expected of an ordinary metal, contradicting the quantum oscillation measurements. Meng et al. report ARPES measurements of La-Bi2201 showing the presence of both Fermi pockets and Fermi arcs. This coexistence is surprising since it is not predicted by current theories.
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页码：335 / 338
页数：3
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