期刊
PHYSICAL REVIEW LETTERS
卷 105, 期 2, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.105.027001
关键词
-
资金
- NSFC, MOST of China [2006CB601002, 2006CB921302, 2009CB929101]
- CAS
We report the first comprehensive high-resolution angle-resolved photoemission measurements on CeFeAsO, a parent compound of FeAs-based high temperature superconductors with a magnetic-structural transition at similar to 150 K. In the magnetic-ordering state, four holelike Fermi surface sheets are observed near Gamma(0,0),and the Fermi surface near M(+/-pi, +/-pi) shows a tiny electronlike pocket at M surrounded by four strong spots. The unusual Fermi surface topology deviates strongly from the band structure calculations. The electronic signature of the magnetic-structural transition shows up in the dramatic change of the quasiparticle scattering rate. A dispersion kink at similar to 25 meV is observed for the first time in the parent compound of Fe-based superconductors.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据