Exact single spin flip for the Hubbard model in d=infinity

被引：24

作者：

Uhrig, GS

机构：

[1] Laboratoire de Physique des Solides, Université Paris-Sud, Orsay, F-91405

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.77.3629

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

It is shown that the dynamics of a single down arrow-electron interacting with a band of up arrow-electrons can be calculated exactly in the limit of infinite dimension. The corresponding Green function is determined as a continued fraction. It is used to investigate the stability of saturated ferromagnetism and the nature of the ground state for two generic nonbipartite infinite dimensional lattices. Non-Fermi-liquid behavior is found. For certain dopings the down arrow-electron is bound to the up arrow-holes.

引用

页码：3629 / 3632

页数：4

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Pettifor D. G., 1985, RECURSION METHOD ITS, V58

[32] Anomalous normal-state properties of high-T-c superconductors: Intrinsic properties of strongly correlated electron systems? [J].