LARGE-N EXPANSION FOR FRUSTRATED QUANTUM ANTIFERROMAGNETS

被引：742
作者：
READ, N [1 ]
SACHDEV, S [1 ]
机构：
[1] YALE UNIV,CTR THEORET PHYS,NEW HAVEN,CT 06520
来源：
PHYSICAL REVIEW LETTERS | 1991年 / 66卷 / 13期
关键词：
D O I：
10.1103/PhysRevLett.66.1773
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A large-N expansion technique based on symplectic [Sp(N)] symmetry for frustrated magnetic systems is proposed and applied to the square-lattice quantum antiferromagnet with first-, second-, and third-neighbor antiferromagnetic coupling. In addition to disordered states similar to those in unfrustrated systems, phases with incommensurate coplanar spin correlations and unconfined bosonic spinons are found. The occurrence of "order from disorder" is discussed. Neither chirally ordered nor spin-nematic states are found.
引用
收藏
页码：1773 / 1776
页数：4
相关论文
共 38 条
  • [1] RIGOROUS RESULTS ON VALENCE-BOND GROUND-STATES IN ANTIFERROMAGNETS
    AFFLECK, I
    KENNEDY, T
    LIEB, EH
    TASAKI, H
    [J]. PHYSICAL REVIEW LETTERS, 1987, 59 (07) : 799 - 802
  • [2] VALENCE BOND GROUND-STATES IN ISOTROPIC QUANTUM ANTIFERROMAGNETS
    AFFLECK, I
    KENNEDY, T
    LIEB, EH
    TASAKI, H
    [J]. COMMUNICATIONS IN MATHEMATICAL PHYSICS, 1988, 115 (03) : 477 - 528
  • [3] THE RESONATING VALENCE BOND STATE IN LA2CUO4 AND SUPERCONDUCTIVITY
    ANDERSON, PW
    [J]. SCIENCE, 1987, 235 (4793) : 1196 - 1198
  • [4] FUNCTIONAL INTEGRAL THEORIES OF LOW-DIMENSIONAL QUANTUM HEISENBERG MODELS
    AROVAS, DP
    AUERBACH, A
    [J]. PHYSICAL REVIEW B, 1988, 38 (01) : 316 - 332
  • [5] AROVAS DP, 1988, PHYS REV LETT, V61, P617
  • [6] NONUNIVERSALITY IN HELICAL AND CANTED-SPIN SYSTEMS
    AZARIA, P
    DELAMOTTE, B
    JOLICOEUR, T
    [J]. PHYSICAL REVIEW LETTERS, 1990, 64 (26) : 3175 - 3178
  • [7] THE RESONATING VALENCE BOND STATE AND HIGH-TC SUPERCONDUCTIVITY - A MEAN FIELD-THEORY
    BASKARAN, G
    ZOU, Z
    ANDERSON, PW
    [J]. SOLID STATE COMMUNICATIONS, 1987, 63 (11) : 973 - 976
  • [8] SPIRAL PHASES AND TIME-REVERSAL-VIOLATING RESONATING-VALENCE-BOND STATES OF DOPED ANTIFERROMAGNETS
    CHAKRABORTY, B
    READ, N
    KANE, C
    LEE, PA
    [J]. PHYSICAL REVIEW B, 1990, 42 (07): : 4819 - 4822
  • [9] LOW-TEMPERATURE BEHAVIOR OF TWO-DIMENSIONAL QUANTUM ANTIFERROMAGNETS
    CHAKRAVARTY, S
    HALPERIN, BI
    NELSON, DR
    [J]. PHYSICAL REVIEW LETTERS, 1988, 60 (11) : 1057 - 1060
  • [10] TWO-DIMENSIONAL QUANTUM HEISENBERG-ANTIFERROMAGNET AT LOW-TEMPERATURES
    CHAKRAVARTY, S
    HALPERIN, BI
    NELSON, DR
    [J]. PHYSICAL REVIEW B, 1989, 39 (04) : 2344 - 2371
1234