SPIRAL PHASE IN A DOPED ANTIFERROMAGNET

被引：15

作者：

EDER, R

机构：

[1] Max-Planck Institut für Festkörperforschung

来源：

PHYSICAL REVIEW B | 1991年 / 43卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.43.10706

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The coherent motion of a hole in an antiferromagnetic described by the t-J model is discussed assuming that the spins show a spiral correlation function. The results are obtained from an ansatz for the wave function and no kind of mean-field approximation has to be made. When the resulting band is filled up for a low concentration of holes the total energy of the system can be estimated and it is found that for any finite concentration of holes a state with spiral spin configuration is energetically favorable compared to a state with Neel order.

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页码：10706 / 10714

页数：9

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