On the mean-field theory of a two-sublattice antiferromagnet

被引：2
|
作者：
Zvyagin, A. A. [1 ]
Skorobagat'ko, G. A.
机构：
[1] Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany
[2] Natl Acad Sci Ukraine, B Verkin Inst Low Temp Phys & Engn, UA-61103 Kharkov, Ukraine
来源：
LOW TEMPERATURE PHYSICS | 2006年 / 32卷 / 07期
关键词：
D O I：
10.1063/1.2216229
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Numerical solutions of the mean-field theory of a two-sublattice antiferromagnet with a strong crystalline electric field are studied. The validity of the solutions is checked with the help of known analytical results for the special case of the lowest doublet (S=1/2). For larger values of the lowest multiplet (S > 1/2) the temperature and magnetic field dependencies of the antiferromagnetic order parameter and the total magnetization are calculated and their features are analyzed. We predict new re-entrant phase transitions between Neel and paramagnetic phases for S >= 1. (c) 2006 American Institute of Physics.
引用
收藏
页码：644 / 649
页数：6
相关论文
共 50 条
  • [1] To the mean-field theory of a two-sublattice antiferromagnet
    Max-Planck-Institut für Physik Komplexer Systeme, Dresden, D-01187, Germany
    不详
    Fiz Nizk Temp, 2006, 7 (845-852):
  • [2] Isotropic magnetoelastic interaction in two-sublattice ferri- and antiferromagnets: Mean-field approximation for the Heisenberg model
    Valiev, EZ
    PHYSICS OF METALS AND METALLOGRAPHY, 2003, 96 (02): : 121 - 127
  • [3] Oscillating spin vortices in a two-sublattice uniaxial antiferromagnet
    Gorobets, Yu, I
    Gorobets, O. Yu
    Kulish, V. V.
    LOW TEMPERATURE PHYSICS, 2021, 47 (10) : 843 - 848
  • [4] MEAN-FIELD THEORY FOR VACANCIES IN A QUANTUM ANTIFERROMAGNET
    SHRAIMAN, BI
    SIGGIA, ED
    PHYSICAL REVIEW B, 1989, 40 (13): : 9162 - 9166
  • [5] MEAN-FIELD THEORY OF THE SPIRAL PHASES OF A DOPED ANTIFERROMAGNET
    KANE, CL
    LEE, PA
    NG, TK
    CHAKRABORTY, B
    READ, N
    PHYSICAL REVIEW B, 1990, 41 (04): : 2653 - 2656
  • [6] Generalized dynamical mean-field theory of two-sublattice systems with long-range interactions and its application to study charge and spin correlations in graphene
    Katanin, A. A.
    PHYSICAL REVIEW B, 2021, 104 (24)
  • [7] PHENOMENOLOGICAL THEORY OF RELAXATION IN TWO-SUBLATTICE FERRITE
    Bar'yakhtar, V. G.
    Ivanov, B. A.
    Golubjeva, O. N.
    Sukhanov, A. D.
    UKRAINIAN JOURNAL OF PHYSICS, 2013, 58 (12): : 1149 - 1155
  • [8] Singular optics of spin waves in a two-sublattice antiferromagnet with uniaxial magnetic anisotropy
    Gorobets, Yu. I.
    Gorobets, O. Yu.
    LOW TEMPERATURE PHYSICS, 2017, 43 (05) : 564 - 569
  • [9] Self-consistent mean-field theory of two-dimensional anisotropic Heisenberg antiferromagnet
    Song, Y
    Feng, SP
    Ma, BK
    COMMUNICATIONS IN THEORETICAL PHYSICS, 1999, 31 (02) : 199 - 204
  • [10] Kagome antiferromagnet: A schwinger-boson mean-field theory study
    Li, Peng
    Su, Haibin
    Shen, Shun-Qing
    PHYSICAL REVIEW B, 2007, 76 (17)
12345