Phase diagram of a random-anisotropy mixed-spin Ising model

被引：19
|
作者：
Vieira, AP [1 ]
de Carvalho, JX [1 ]
Salinas, SR [1 ]
机构：
[1] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, Brazil
来源：
PHYSICAL REVIEW B | 2001年 / 63卷 / 18期
关键词：
D O I：
10.1103/PhysRevB.63.184415
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We investigate the phase diagram of a mixed spin-1/2-spin-1 Ising system in the presence of quenched disordered anisotropy. We carry out a mean-field and a standard self-consistent Bethe-Peierls calculation. Depending on the amount of disorder, there appear additional transition lines and multicritical points. Also, we report some connections with a percolation problem and an exact result in one dimension.
引用
收藏
页数：7
相关论文
共 50 条
  • [31] Critical behavior of the mixed-spin Ising model with two competing dynamics
    Godoy, M
    Figueiredo, W
    PHYSICAL REVIEW E, 2002, 65 (02):
  • [32] Mixed-Spin Ising Model in an Oscillating Magnetic Field and Compensation Temperature
    Mustafa Keskin
    Mehmet Ertaş
    Journal of Statistical Physics, 2010, 139 : 333 - 344
  • [33] RENORMALIZATION-GROUP CALCULATIONS FOR A MIXED-SPIN ISING-MODEL
    QUADROS, SGA
    SALINAS, SR
    PHYSICA A, 1994, 206 (3-4): : 479 - 496
  • [34] Mixed-spin Ising model with one- and two-spin competing dynamics
    Godoy, M
    Figueiredo, W
    PHYSICAL REVIEW E, 2000, 61 (01): : 218 - 222
  • [35] PHASE-TRANSITIONS IN RANDOM-ANISOTROPY MAGNETS
    FISCH, R
    PHYSICAL REVIEW B, 1990, 41 (16): : 11705 - 11708
  • [36] PHASE-TRANSITION IN RANDOM-ANISOTROPY MAGNETS
    CHAKRABARTI, A
    PHYSICAL REVIEW B, 1989, 39 (04): : 2807 - 2810
  • [37] Formation of quantum magnetization plateaux in mixed-spin Ising chains with single-ion anisotropy
    Solano-Carrillo, E.
    Franco, R.
    Silva-Valencia, J.
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2010, 322 (23) : 3760 - 3764
  • [38] Dynamical phase diagram of the random field Ising model
    G.L.S. Paula
    W. Figueiredo
    The European Physical Journal B - Condensed Matter and Complex Systems, 1998, 1 : 519 - 522
  • [39] Dynamical phase diagram of the random field Ising model
    Paula, GLS
    Figueiredo, W
    EUROPEAN PHYSICAL JOURNAL B, 1998, 1 (04): : 519 - 522
  • [40] The phase diagram of an Ising model on a polymerized random surface
    Jonsson, T.
    Wheater, J. F.
    Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, 345 (03):
12345