SPIN CORRELATIONS AT FINITE-TEMPERATURE IN AN S=1 ONE-DIMENSIONAL ANTIFERROMAGNET

被引：22

作者：

MA, SL

REICH, DH

BROHOLM, C

STERNLIEB, BJ

ERWIN, RW

机构：

[1] NIST,GAITHERSBURG,MD 20899

[2] BROOKHAVEN NATL LAB,UPTON,NY 11973

来源：

PHYSICAL REVIEW B | 1995年 / 51卷 / 05期

关键词：

D O I：

10.1103/PhysRevB.51.3289

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have measured the temperature dependence of equal-time spin correlations in the quasi-one-dimensional S=1 antiferromagnet, Ni(C2H8N2)2NO2ClO4 (NENP), by magnetic neutron scattering. The temperature dependence of the correlation length can be described as exponentially activated with an activation energy similar to the Haldane gaps in NENP. © 1995 The American Physical Society.

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页码：3289 / 3292

页数：4

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