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.
引用
收藏
页码：3289 / 3292
页数：4
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