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.

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收藏

页码：2780 / 2783

页数：4

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