Correlated electronic structure of LaO1-xFxFeAs
Correlated electronic structure of LaO1-xFxFeAs
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DOI：
10.1103/physrevlett.100.226402
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发表时间：
2008-06-06
影响因子：
8.6
通讯作者：
Kotliar, G.
中科院分区：
文献类型：
--
作者：
Haule, K.;Shim, J. H.;Kotliar, G.
我们结合密度泛函理论和动态平均场理论计算了新型超导体 LaO1-xFxFeAs 的电子结构、动量分辨谱函数和光导率。我们发现正常状态下的化合物是强相关金属，而母体化合物是处于金属绝缘体转变边缘的不良金属。我们认为超导性不是声子介导的。
We compute the electronic structure, momentum resolved spectral function and optical conductivity of the new superconductor LaO1-xFxFeAs within the combination of the density functional theory and dynamical mean field theory. We find that the compound in the normal state is a strongly correlated metal and the parent compound is a bad metal at the verge of the metal insulator transition. We argue that the superconductivity is not phonon mediated.