O(n) Models with "Random Local Field"- and "Random Local Anisotropy"-Type Defects: Long-Range Order is Possible

被引:3
|
作者
Berzin, A. A. [1 ]
Morosov, A. I. [2 ]
机构
[1] Moscow State Univ Informat Technol & Radioengn, Moscow 119454, Russia
[2] State Univ, Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Moscow Oblast, Russia
关键词
STATE;
D O I
10.1134/S1063783415110074
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Conditions of long-range order breaking in the O(n) model (n-component vector model) with "random local field"-type defects have been formulated. It has been suggested that the long-range order can persist in the ground state of the system under certain conditions, despite the emergence of an inhomogeneous state predicted by Imry and Ma in their classical work. Random-local-anisotropy defects cannot destroy the long-range order in the ground state of the system.
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页码:2217 / 2220
页数:4
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