ENHANCEMENT OF ANISOTROPY DUE TO FLUCTUATIONS IN QUASI-ONE-DIMENSIONAL ANTIFERROMAGNETS

被引：10
|
作者：
ABANOV, AG [1 ]
PETRENKO, OA [1 ]
机构：
[1] MCMASTER UNIV,DEPT PHYS & ASTRON,HAMILTON L8S 4M1,ONTARIO,CANADA
来源：
PHYSICAL REVIEW B | 1994年 / 50卷 / 09期
关键词：
D O I：
10.1103/PhysRevB.50.6271
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
It is shown that the observed anisotropy of magnetization at high magnetic fields in RbMnBr3, a quasi-one-dimensional antiferromagnet on a distorted. stacked triangular lattice, is due to quantum and thermal fluctuations. These fluctuations are taken into account in the framework of linear spin-wave theory in the region of strong magnetic fields. In this region the divergent one-dimensional integrals are cut off by magnetic field and the bare easy-plane anisotropy. Logarithmical dependence on the cutoff leads to the ''enhancement'' of the anisotropy in magnetization. Comparison between magnetization data and our theory with parameters obtained from neutron scattering experiments has been done.
引用
收藏
页码：6271 / 6276
页数：6
相关论文
共 50 条
  • [1] Classical fluctuations and anisotropy in quasi-one-dimensional antiferromagnets
    Santini, P
    Domanski, Z
    Dong, J
    Erdos, P
    [J]. PHYSICAL REVIEW B, 1996, 54 (09): : 6327 - 6332
  • [2] Quantum fluctuations and anisotropy in quasi-one-dimensional antiferromagnets
    Santini, P
    Fath, G
    Domanski, Z
    Erdos, P
    [J]. PHYSICAL REVIEW B, 1997, 56 (09) : 5373 - 5379
  • [3] QUASI-ONE-DIMENSIONAL TRIANGULAR ANTIFERROMAGNETS
    PROZOROVA, LA
    PETRENKO, OA
    ZALIZNYAK, IA
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1992, 116 (03) : 350 - 354
  • [4] Influence of quantum fluctuations on the magnetic properties of quasi-one-dimensional triangular antiferromagnets
    Dumesh, BS
    [J]. USPEKHI FIZICHESKIKH NAUK, 2000, 170 (04): : 403 - 418
  • [5] DILUTED QUASI-ONE-DIMENSIONAL CLASSICAL ANTIFERROMAGNETS
    KORENBLIT, IY
    SHENDER, EF
    [J]. PHYSICAL REVIEW B, 1993, 48 (13): : 9478 - 9486
  • [6] LONGITUDINAL MODES IN QUASI-ONE-DIMENSIONAL ANTIFERROMAGNETS
    AFFLECK, I
    WELLMAN, GF
    [J]. PHYSICAL REVIEW B, 1992, 46 (14) : 8934 - 8953
  • [7] EFFECT OF THE MAGNETIC-FIELD ON QUANTUM FLUCTUATIONS IN QUASI-ONE-DIMENSIONAL HEXAGONAL ANTIFERROMAGNETS
    ZALIZNYAK, IA
    [J]. SOLID STATE COMMUNICATIONS, 1992, 84 (05) : 573 - 576
  • [8] TUNNELING OF INCOHERENT EXCITONS IN QUASI-ONE-DIMENSIONAL ANTIFERROMAGNETS
    EREMENKO, VV
    KARACHEVTSEV, VA
    SLAVIN, VV
    SHAPIRO, VV
    [J]. FIZIKA NIZKIKH TEMPERATUR, 1993, 19 (11): : 1277 - 1279
  • [9] PROPERTIES OF A COLLECTIVE EXCITATION IN QUASI-ONE-DIMENSIONAL ANTIFERROMAGNETS
    PANG, XF
    [J]. PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1993, 180 (01): : 237 - 248
  • [10] EXPERIMENTS ON HALDANE GAP IN QUASI-ONE-DIMENSIONAL ANTIFERROMAGNETS
    RENARD, JP
    GADET, V
    REGNAULT, LP
    VERDAGUER, M
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1990, 90-1 : 213 - 216
12345