TEXTURAL SINGULARITIES AND FRUSTRATION IN RANDOM-ANISOTROPY AND RANDOM-FIELD MODELS

被引：7

作者：

ALEXANDER, S

LUBENSKY, TC

机构：

[1] UNIV PENN,RES STRUCT MATTER LAB,PHILADELPHIA,PA 19104

[2] UNIV PENN,DEPT PHYS,PHILADELPHIA,PA 19104

来源：

PHYSICAL REVIEW LETTERS | 1979年 / 42卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.42.125

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Spin models with random anisotropic fields and random magnetic fields are studied. It is shown that integral-index textural singularities of these fields act as disclination sources and participate in destroying long-range ferromagnetic order. Half-integral-index singularities give rise to frustration. The relation of these models to bond disordered spin-glasses is discussed. © 1979 The American Physical Society.

引用

页码：125 / 129

页数：5

共 19 条

[1]

AHARONY A, 1975, PHYS REV B, V12, P1038, DOI 10.1103/PhysRevB.12.1038

[2] LOWERING OF DIMENSIONALITY IN PHASE-TRANSITIONS WITH RANDOM FIELDS [J].