SINGLE SPIN-FLIP IN THE NAGAOKA STATE - PROBLEMS WITH THE GUTZWILLER WAVE-FUNCTION

被引：28

作者：

KOPP, T ^{[1
]}

RUCKENSTEIN, AE ^{[1
]}

SCHMITTRINK, S ^{[1
]}

机构：

[1] AT&T BELL LABS,MURRAY HILL,NJ 07974

来源：

PHYSICAL REVIEW B | 1990年 / 42卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.42.6850

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We reconsider the problem of a single spin flip in the saturated ferromagnetic state (the Nagaoka state) of the infinite-U Hubbard model for a small (but finite) hole concentration. By studying the ground-state energy and the spin-flip spectral function, we argue that recently proposed Gutzwiller-like variational wave functions are not appropriate for studying this problem in one and two dimensions. © 1990 The American Physical Society.

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页码：6850 / 6852

页数：3

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