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

来源：

PHYSICS OF THE SOLID STATE | 2015年 / 57卷 / 11期

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.

引用

页码：2217 / 2220

页数：4

共 9 条

[1]

[Anonymous], DEFECTS STRUCTURAL P

[2]

Dotsenko Vik S, 1995, PHYS-USP, V38, P457

[3] Critical properties of random anisotropy magnets [J].

Dudka, M ;

Folk, R ;

Holovatch, Y .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2005, 294 (03) :305-329

[4] Long-range correlated random field and random anisotropy O(N) models:: A functional renormalization group study [J].

Fedorenko, Andrei A. ;

Kuehnel, Florian .

PHYSICAL REVIEW B, 2007, 75 (17)

[5] RANDOM-FIELD INSTABILITY OF ORDERED STATE OF CONTINUOUS SYMMETRY [J].

IMRY, Y ;

MA, S .

PHYSICAL REVIEW LETTERS, 1975, 35 (21) :1399-1401

[6]

Morosov A. I., 1998, Comments on Condensed Matter Physics, V18, P279

[7] RANDOM MAGNETIC-FIELDS AND INSTANTONS IN REPLICA SPACE [J].

PARISI, G ;

DOTSENKO, V .

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 1992, 25 (11) :3143-3151

[8] On larkin-imry-ma state of 3He-A in aerogel [J].

Volovik, G. E. .

JOURNAL OF LOW TEMPERATURE PHYSICS, 2008, 150 (3-4) :453-463

[9]

Young A. P., 1998, Spin Glasses and Random Fields

← 1 →