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

关键词：

D O I：

暂无

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学科分类号：

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.

引用

页码：335 / 338

页数：3

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