PHASE LOCKING IN HEISENBERG HELIMAGNETS

被引：6

作者：

HARRIS, AB ^{[1
]}

RASTELLI, E ^{[1
]}

TASSI, A ^{[1
]}

机构：

[1] UNIV PARMA,DEPARTIMENTO FIS,I-43100 PARMA,ITALY

来源：

JOURNAL OF APPLIED PHYSICS | 1990年 / 67卷 / 09期

关键词：

D O I：

10.1063/1.345838

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We consider a Heisenberg model with ferromagnetic nearest-neighbor and competing further-neighbor exchange interactions in a small applied magnetic field at low temperature T. As a function of the exchange constants, the modulation vector is shown to have devil's staircase behavior. We consider the effects of nonzero temperature and quantum effects. We find a special modulation wave vector at which the incommensurability energy vanishes for the classical system at T=0.

引用

页码：5445 / 5447

页数：3

共 11 条

[1]

Aubry S, 1980, RIEMANN PROBLEM COMP, V925

[2] PHENOMENOLOGICAL DISCUSSION OF MAGNETIC ORDERIING IN HEAVY RARE-EARTH METALS [J].

ELLIOTT, RJ .

PHYSICAL REVIEW, 1961, 124 (02) :346-+

[3]

ELLIOTT RJ, 1960, PHYS REV, V152, P235

[4] INFINITELY MANY COMMENSURATE PHASES IN A SIMPLE ISING-MODEL [J].

FISHER, ME ;

SELKE, W .

PHYSICAL REVIEW LETTERS, 1980, 44 (23) :1502-1505

[5] ONE-DIMENSIONAL DISLOCATIONS .1. STATIC THEORY [J].

FRANK, FC ;

VANDERMERWE, JH .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1949, 198 (1053) :205-216

[6]

FRANKEL J, 1938, PHYS Z SOWJETUNION, V13, P1

[7]

HARRIS AB, IN PRESS

[8]

NAGAMIYA T, 1967, SOLID STATE PHYS, V20, P346

[9] DEGENERATE HELIMAGNETIC STATES, LINES OF SOFT MODES AND ABSENCE OF LONG-RANGE ORDER IN 3 DIMENSIONS [J].

RASTELLI, E ;

REATTO, L ;

TASSI, A .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1983, 16 (11) :L331-L335

[10] NON-SIMPLE MAGNETIC ORDER FOR SIMPLE HAMILTONIANS [J].

RASTELLI, E ;

TASSI, A ;

REATTO, L .

PHYSICA B & C, 1979, 97 (01) :1-24

← 1 2 →