INPLANE DYNAMICS OF THE CLASSICAL 2-DIMENSIONAL EASY-PLANE HEISENBERG-MODEL AT LOW-TEMPERATURES

被引：17
|
作者：
MENEZES, SL [1 ]
PIRES, AST [1 ]
GOUVEA, ME [1 ]
机构：
[1] UNIV FED MINAS GERAIS, INST CIENCIAS EXATAS, DEPT FIS, BELO HORIZONTE, MG, BRAZIL
来源：
PHYSICAL REVIEW B | 1993年 / 47卷 / 18期
关键词：
D O I：
10.1103/PhysRevB.47.12280
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We have calculated the in-plane dynamical structure factor S(parallel-to)(q,omega) of the two-dimensional classical Heisenberg model with easy-plane anisotropy at low temperatures using the projection-operator technique. Beside the characteristic power-law singularity at the spin-wave frequency, we have found that S(parallel-to)(q,omega) diverges logarithmically as omega-->0 for finite values of q.
引用
收藏
页码：12280 / 12283
页数：4
相关论文
共 50 条
  • [41] EXACT RESULTS FOR THE DYNAMICS OF THE CLASSICAL NEAREST-NEIGHBOR HEISENBERG CHAIN AT LOW-TEMPERATURES
    REITER, G
    SJOLANDER, A
    JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1980, 13 (16): : 3027 - 3055
  • [42] Helicity modulus and vortex density in the two-dimensional easy-plane Heisenberg model on a square lattice
    Lee, KW
    Lee, CE
    Kim, IM
    SOLID STATE COMMUNICATIONS, 2005, 135 (1-2) : 95 - 98
  • [43] New chirality transition of classical Heisenberg model with easy-plane anisotropy on a two-layer triangular lattice
    Horiguchi, T
    Wang, Y
    Honda, Y
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2001, 226 (PART I) : 553 - 555
  • [44] MAGNETIC-ORDERED STATE OF 2-DIMENSIONAL FERROMAGNETS WITH ANISOTROPY OF EASY-PLANE TYPE
    KARIMOV, YS
    ZHURNAL EKSPERIMENTALNOI I TEORETICHESKOI FIZIKI, 1974, 66 (03): : 1121 - 1128
  • [45] THE CLASSICAL 2-DIMENSIONAL XY MODEL WITH INPLANE MAGNETIC-FIELD
    GOUVEA, ME
    MERTENS, FG
    BISHOP, AR
    WYSIN, GM
    JOURNAL OF PHYSICS-CONDENSED MATTER, 1990, 2 (07) : 1853 - 1868
  • [46] MONTE-CARLO CALCULATION OF THE SPIN STIFFNESS OF THE 2-DIMENSIONAL HEISENBERG-MODEL
    CAFFAREL, M
    AZARIA, P
    DELAMOTTE, B
    MOUHANNA, D
    EUROPHYSICS LETTERS, 1994, 26 (07): : 493 - 498
  • [47] A MONTE-CARLO STUDY OF TWO-DIMENSIONAL CLASSICAL EASY-PLANE HEISENBERG MODELS WITH SYMMETRY-BREAKING
    KAWABATA, C
    BISHOP, AR
    ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1986, 65 (02): : 225 - 234
  • [48] LOW-TEMPERATURE THEORIES OF THE CLASSICAL ONE-DIMENSIONAL EASY-PLANE FERROMAGNET - SUCCESSES AND LIMITATIONS
    LOVELUCK, JM
    SCHNEIDER, T
    STOLL, E
    JAUSLIN, HR
    JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1982, 15 (08): : 1721 - 1729
  • [49] COMPRESSIBILITY EFFECT ON THE QUANTUM 2-DIMENSIONAL NUCLEATION AT LOW-TEMPERATURES
    BURMISTROV, SN
    DUBOVSKII, LB
    JOURNAL OF LOW TEMPERATURE PHYSICS, 1994, 96 (3-4) : 131 - 152
  • [50] MAGNON DAMPING, SPIN STIFFNESS, AND DYNAMIC SCALING IN THE 2-DIMENSIONAL QUANTUM HEISENBERG-FERROMAGNET AT LOW-TEMPERATURES
    KOPIETZ, P
    CASTILLA, G
    PHYSICAL REVIEW B, 1991, 43 (13): : 11100 - 11106
12345