Electron states and Fermi surfaces in the organic superconductor kappa-(BEDT-TTF)(2)Cu[N(CN)(2)]Br

被引：32
|
作者：
Ching, WY [1 ]
Xu, YN [1 ]
Jean, YC [1 ]
Lou, Y [1 ]
机构：
[1] UNIV MISSOURI,DEPT CHEM,KANSAS CITY,MO 64110
来源：
PHYSICAL REVIEW B | 1997年 / 55卷 / 05期
关键词：
D O I：
10.1103/PhysRevB.55.2780
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The electronic structure and the Fermi surfaces of the organic superconductor kappa-(BEDT-TTF)(2)Cu[N(CN)(2)]Br are elucidated by first-principles calculations. The results show very narrow bands, high state density at the Fermi level, and a small band effective mass of 0.28m(0) for the closed hole orbit. The topological features of the Fermi surfaces with multiple sheets are more complicated than that of kappa-(BEDT-TTF)(2)Cu(NCS)(2). Fermi electron distribution on the central C=C double bond:reveals the non-equivalency of the two central C atoms.
引用
收藏
页码：2780 / 2783
页数：4
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