Theory of spin fluctuations in striped phases of doped antiferromagnetic cuprates

被引：7

作者：

Hone, D ^{[1
]}

Castro Neto, AH ^{[1
]}

机构：

[1] UNIV CALIF RIVERSIDE, DEPT PHYS, RIVERSIDE, CA 92521 USA

来源：

JOURNAL OF SUPERCONDUCTIVITY | 1997年 / 10卷 / 04期

基金：

美国国家科学基金会;

关键词：

quantum antiferromagnets; doped cuprates; striped phases;

D O I：

10.1007/BF02765717

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We study the properties of generalized striped phases of doped cuprate planar quantum antiferromagnets. Wi: invoke an effective, spatially anisotropic, nonlinear sigma model in two space dimensions. Our theoretical predictions are in quantitative agreement with recent experiments in La2-xSrxCuO4 with 0 less than or equal to x less than or equal to 0.018. We focus on (i) the magnetic correlation length, (ii) the staggered magnetization at T = 0, and (iii) the Neel temperature, as functions of doping, using parameters determined previously and independently for this system. These results support the proposal that the low doping (antiferromagnetic) phase of the cuprates has a striped configuration.

引用

页码：349 / 353

页数：5

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