STATIC AND DYNAMICAL SPIN SUSCEPTIBILITY IN 2D ANTIFERROMAGNETIC HEISENBERG-MODEL

被引：7
|
作者：
ALLEGA, AM [1 ]
ODASHIMA, S [1 ]
MATSUMOTO, H [1 ]
MANCINI, F [1 ]
机构：
[1] UNIV SALERNO,DIPARTIMENTO FIS TEOR & SMSA,I-84048 BARONISSI,ITALY
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1994年 / 235卷
关键词：
D O I：
10.1016/0921-4534(94)92336-1
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Two-dimensional antiferromagnetic Heisenberg model is investigated by use of equations of motion and spin algebra within a mean field approximation. Development of a short range antiferromagnetic order is described by a nearest neighbor spin pair order parameter and spin excitation is expressed relatively to the nearest neighbor spins. With decreasing temperature, crossover behavior from Curie-Weiss behavior to spin liquid one is obtained as a result of increase of the spin-pair order parameter.
引用
收藏
页码：2229 / 2230
页数：2
相关论文
共 50 条
  • [41] APPROACH TO THE SPIN-1/2 QUANTUM HEISENBERG-MODEL
    KARBACH, M
    MUTTER, KH
    UEBERHOLZ, P
    KROGER, H
    PHYSICAL REVIEW B, 1993, 48 (18) : 13666 - 13677
  • [42] COMPLETE SOLUTION OF THE 2-DIMENSIONAL ANTIFERROMAGNETIC HEISENBERG-MODEL ON SMALL LATTICES
    FABRICIUS, K
    LOW, U
    MUTTER, KH
    PHYSICAL REVIEW B, 1991, 44 (18): : 9981 - 9988
  • [43] THE EXACT CORRELATION LENGTH OF THE ANTIFERROMAGNETIC D=2+1 HEISENBERG-MODEL AT LOW-TEMPERATURES
    HASENFRATZ, P
    NIEDERMAYER, F
    PHYSICS LETTERS B, 1991, 268 (02) : 231 - 235
  • [44] ABSENCE OF VECTOR CHIRAL ORDER IN THE 2-DIMENSIONAL ANTIFERROMAGNETIC HEISENBERG-MODEL
    KAWARABAYASHI, T
    SUZUKI, M
    PHYSICS LETTERS A, 1990, 143 (1-2) : 17 - 19
  • [45] MC-MD SIMULATION OF CLASSICAL 2D ANTIFERROMAGNETIC HEISENBERG SPIN SYSTEMS
    KAWABATA, C
    TAKEUCHI, M
    NAKANISHI, T
    HAMAMOTO, H
    BISHOP, AR
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1990, 90-1 : 284 - 286
  • [46] THE SPIN 1/2 HEISENBERG-MODEL AND THE RAILROAD TRESTLE GEOMETRY
    LONG, MW
    SIAK, S
    JOURNAL OF PHYSICS-CONDENSED MATTER, 1991, 3 (26) : 4901 - 4915
  • [47] THERMODYNAMIC PROPERTIES OF ANTIFERROMAGNETIC HEISENBERG-MODEL (S=1/2) ON THE SQUARE LATTICE
    MIYASHITA, S
    JOURNAL DE PHYSIQUE, 1988, 49 (C-8): : 1391 - 1392
  • [48] TEMPERATURE-DEPENDENCE OF SPIN-WAVE ENERGIES IN THE 2D CLASSICAL HEISENBERG-MODEL WITH AN EASY-PLANE ANISOTROPY
    SHIRAKURA, T
    MATSUBARA, F
    INAWASHIRO, S
    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1990, 59 (06) : 2285 - 2286
  • [49] MOTION OF VORTEX PAIRS IN THE FERROMAGNETIC AND ANTIFERROMAGNETIC ANISOTROPIC HEISENBERG-MODEL
    VOLKEL, AR
    MERTENS, FG
    BISHOP, AR
    WYSIN, GM
    PHYSICAL REVIEW B, 1991, 43 (07): : 5992 - 6005
  • [50] GROUND-STATE STAGGERED MAGNETIZATION OF THE ANTIFERROMAGNETIC HEISENBERG-MODEL
    HAAN, O
    KLAETKE, JU
    MUTTER, KH
    PHYSICAL REVIEW B, 1992, 46 (09): : 5723 - 5726
12345