Phase diagrams of the spin-1 Blume-Emery-Griffiths model in a random transverse field

被引:6
|
作者
Ez-Zahraouy, H
Mahboub, H
Benyoussef, A
Ouazzani, MJ
机构
[1] Lab Magnetisme & Phys Hautes Energies, Fac Sci, Dept Phys, Rabat, Morocco
[2] Fac Sci Dhar Mahraz, Phys Solide Lab, Fes, Morocco
来源
INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 2004年 / 18卷 / 31-32期
关键词
Blume-Emery-Griffiths; random transverse field; spin-1; tricritical;
D O I
10.1142/S021797920402775X
中图分类号
O59 [应用物理学];
学科分类号
摘要
The effect of the random quantum transverse field Omega on the tricritical behavior of the spin-1 Blume-Emery-Griffiths (BEG) model is studied using an effective field theory. It is found that the tricritical behavior depends on both the biquadratic interaction K, single-ion anisotropy Delta and the concentration p of the disorder of Omega. Indeed, there exists a special value p(1) of the probability p below which the tricritical behavior disappears. In addition, at sufficiently low temperatures, the system exhibits long-range order accompanied by the tricritical behavior below a special value p(2) of the probability p.
引用
收藏
页码:4129 / 4142
页数:14
相关论文
共 50 条
  • [1] Phase transition properties of the spin-1 Blume-Emery-Griffiths model with random transverse crystal field
    Qian, X.
    Yan, S. L.
    [J]. SOLID STATE COMMUNICATIONS, 2011, 151 (23) : 1846 - 1850
  • [2] THE BOND DILUTED SPIN-1 BLUME-EMERY-GRIFFITHS MODEL IN A TRANSVERSE FIELD
    EZZAHRAOUY, H
    [J]. PHYSICA SCRIPTA, 1995, 51 (03): : 310 - 315
  • [3] Layering sublimation transitions of the spin-1 Blume-Emery-Griffiths model in a transverse field
    Benyoussef, A
    Ez-Zahraouy, H
    Mahboub, H
    Ouazzani, MJ
    [J]. PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, 2003, 326 (1-2) : 220 - 232
  • [4] Magnetic behavior of a spin-1 Blume-Emery-Griffiths model
    Mancini, F. P.
    [J]. INTERNATIONAL CONFERENCE ON MAGNETISM (ICM 2009), 2010, 200
  • [5] PHASE-DIAGRAMS OF THE SPIN-1 ISING BLUME-EMERY-GRIFFITHS MODEL - MONTE-CARLO SIMULATIONS
    WANG, YL
    LEE, F
    KIMEL, JD
    [J]. PHYSICAL REVIEW B, 1987, 36 (16): : 8945 - 8947
  • [6] Blume-Emery-Griffiths model in a random crystal field
    Branco, NS
    [J]. PHYSICAL REVIEW B, 1999, 60 (02): : 1033 - 1037
  • [7] Effects of the random single-ion anisotropy on the spin-1 Blume-Emery-Griffiths model
    Kple, J.
    Hontinfinde, F.
    Albayrak, Erhan
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2021, 537
  • [8] Phase Diagrams of the Mixed Spin-1 and Spin-3/2 Blume-Emery-Griffiths Model with Repulsive Biquadratic Coupling
    Alrajhi, A.
    Hachem, N.
    Lafhal, A.
    El Antari, A.
    El Bouziani, M.
    Madani, M.
    El Falaki, M.
    [J]. JOURNAL OF ADVANCED PHYSICS, 2018, 7 (02) : 261 - 271
  • [9] Phase diagrams of the Blume-Emery-Griffiths model with site dilution
    Balcerzak, T
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2001, 226 : 599 - 600
  • [10] Staggered Quadrupolar Phase in the Bond-Diluted Spin-1 Blume-Emery-Griffiths Model
    Kple, J.
    Hontinfinde, F.
    Albayrak, E.
    [J]. INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS, 2020, 59 (12) : 3915 - 3935