MODIFIED SPIN-WAVE THEORY FOR THE FRUSTRATED HEISENBERG ANTIFERROMAGNET ON A SQUARE LATTICE

被引：5

作者：

Wu, You ^{[1
]}

Chen, Yuan ^{[1
]}

机构：

[1] Guangzhou Univ, Coll Phys & Elect Engn, Dept Phys, Guangzhou 510006, Guangdong, Peoples R China

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 2013年 / 27卷 / 11期

基金：

中国国家自然科学基金;

关键词：

Heisenberg antiferromagnet; modified spin-wave theory; frustration; MAGNON DISPERSION; SERIES;

D O I：

10.1142/S0217979213500215

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effects of quantum fluctuations due to frustration between nearest neighbors and next-nearest neighbors of the quantum spin-half Heisenberg antiferromagnet on a square lattice are investigated by using the modified spin-wave theory (MSW). We have extended Takahashi's MSW theory, and studied the ground-state and finite-temperature properties of this model. The results calculated within this formalism on the thermodynamics agree quite well with the quantum Monte Carlo estimates, and exact diagonalization results. We have also compared the present method with the conventional spin wave theory.

引用

页数：16

共 50 条

[21] SPIN-WAVE THEORY OF PRINCIPAL SUSCEPTIBILITIES OF HEISENBERG ANTIFERROMAGNET
ITOH, Y
KANAMORI, J
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1972, 33 (02) : 315 - &
[22] Modified spin-wave theory for the S = 1 frustrated antiferromagnetic Heisenberg chain
G. M. Rocha-Filho
A. S.T. Pires
M. E. Gouvêa
The European Physical Journal B, 2007, 56 : 7 - 14
[23] Modified spin-wave theory for the S=1 frustrated antiferromagnetic Heisenberg chain
Rocha-Filho, G. M.
Pires, A. S. T.
Gouvea, M. E.
EUROPEAN PHYSICAL JOURNAL B, 2007, 56 (01): : 7 - 14
[24] Bond operator theory for the frustrated anisotropic Heisenberg antiferromagnet on a square lattice
Pires, A. S. T.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2012, 324 (13) : 2082 - 2085
[25] SPIN-WAVE DAMPING IN A HEISENBERG ANTIFERROMAGNET
WINDSOR, CG
SAUNDERSON, DH
SCHEDLER, E
PHYSICAL REVIEW LETTERS, 1976, 37 (13) : 855 - 858
[26] MODIFIED SPIN-WAVE THEORY OF QUASI-2-DIMENSIONAL HEISENBERG-ANTIFERROMAGNET
SUZUKI, F
ISHII, C
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1993, 62 (10) : 3686 - 3693
[27] SPIN-WAVE EXPANSION OF THE GROUND-STATE ENERGY OF THE SQUARE-LATTICE HEISENBERG-ANTIFERROMAGNET
GOCHEV, IG
PHYSICAL REVIEW B, 1993, 47 (02): : 1096 - 1098
[28] SPIN-WAVE EXPANSION OF THE STAGGERED MAGNETIZATION OF A SQUARE-LATTICE HEISENBERG-ANTIFERROMAGNET AT T = 0
CASTILLA, GE
CHAKRAVARTY, S
PHYSICAL REVIEW B, 1991, 43 (16): : 13687 - 13690
[29] Spin-wave analysis to the spatially anisotropic Heisenberg antiferromagnet on a triangular lattice
Trumper, AE
PHYSICAL REVIEW B, 1999, 60 (05): : 2987 - 2989
[30] Frustrated spin-1/2 Heisenberg antiferromagnet on a chevron-square lattice
Li, P. H. Y.
Bishop, R. F.
Campbell, C. E.
PHYSICAL REVIEW B, 2013, 88 (14):

← 1 2 3 4 5 →