Correlation-induced spin freezing transition in FeSe: A dynamical mean field study

被引：44
|
作者：
Liebsch, Ansgar [1 ]
Ishida, Hiroshi [2 ]
机构：
[1] Forschungszentrum Julich, Inst Festkorperforsch, D-52425 Julich, Germany
[2] Nihon Univ, Coll Humanities & Sci, Tokyo 156, Japan
来源：
PHYSICAL REVIEW B | 2010年 / 82卷 / 15期
关键词：
INFINITE DIMENSIONS; SUPERCONDUCTIVITY; ITINERANT; ELECTRONS;
D O I：
10.1103/PhysRevB.82.155106
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of local Coulomb interactions on the electronic properties of FeSe is explored within dynamical mean field theory combined with finite-temperature exact diagonalization. The low-energy scattering rate is shown to exhibit non-Fermi-liquid behavior caused by the formation of local moments. Fermi-liquid properties are restored at large electron doping. In contrast, FeAsLaO is shown to be located on the Fermi-liquid side of this spin freezing transition.
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页数：5
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