DO THE A4C60 FULLERIDES HAVE A BROKEN-SYMMETRY GROUND-STATE

被引：25

作者：

ERWIN, SC ^{[1
]}

BRUDER, C ^{[1
]}

机构：

[1] UNIV KARLSRUHE,D-76128 KARLSRUHE,GERMANY

来源：

PHYSICA B | 1994年 / 199卷

关键词：

D O I：

10.1016/0921-4526(94)91917-8

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Band theory predicts both K3C60 and K4C60 to be metals; various experimental probes show that while K3C60 is indeed metallic, K4C60 appears to be insulating. The standard view of this apparent failure of the single-particle picture is that electron correlation is predominant. We describe an alternative scenario, motivated on theoretical grounds, which invokes a spin- or charge-density-wave state to explain the observed insulating behavior.

引用

页码：600 / 603

页数：4

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