SPIN LIQUIDS ON THE HUSIMI CACTUS

被引：25

作者：

CHANDRA, P ^{[1
]}

DOUCOT, B ^{[1
]}

机构：

[1] CRTBT,CNRS,F-38042 GRENOBLE 9,FRANCE

来源：

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL | 1994年 / 27卷 / 05期

关键词：

D O I：

10.1088/0305-4470/27/5/019

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have studied the failure of 'fluctuation-selection' in a ground state manifold associated with an extensive entropy. The recursive structure of the Husimi cactus permits exact calculation, and thus avoids problems associated with non-perturbative fluctuations. The structure of the barriers separating the ground states can be determined; in all the cases we have examined, we find that the system prefers to remain a spin liquid rather than to 'localize' in an ordered state that breaks the degeneracy of the manifold.

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页码：1541 / 1556

页数：16

相关论文

共 34 条

[21] VALENCE-BOND AND SPIN-PEIERLS GROUND-STATES OF LOW-DIMENSIONAL QUANTUM ANTIFERROMAGNETS [J].

READ, N ;

SACHDEV, S .

PHYSICAL REVIEW LETTERS, 1989, 62 (14) :1694-1697

[22] ORDER BY DISORDER IN THE CLASSICAL HEISENBERG KAGOME ANTIFERROMAGNET [J].

REIMERS, JN ;

BERLINSKY, AJ .

PHYSICAL REVIEW B, 1993, 48 (13) :9539-9554

[23] SPIN FOLDING IN THE 2-DIMENSIONAL HEISENBERG KAGOME ANTIFERROMAGNET [J].

RITCHEY, I ;

CHANDRA, P ;

COLEMAN, P .

PHYSICAL REVIEW B, 1993, 47 (22) :15342-15345

[24] KAGOME-LATTICE AND TRIANGULAR-LATTICE HEISENBERG ANTIFERROMAGNETS - ORDERING FROM QUANTUM FLUCTUATIONS AND QUANTUM-DISORDERED GROUND-STATES WITH UNCONFINED BOSONIC SPINONS [J].

SACHDEV, S .

PHYSICAL REVIEW B, 1992, 45 (21) :12377-12396

[25] EXCITATION SPECTRUM OF A DIMERIZED NEXT-NEIGHBOR ANTI-FERROMAGNETIC CHAIN [J].

SHASTRY, BS ;

SUTHERLAND, B .

PHYSICAL REVIEW LETTERS, 1981, 47 (13) :964-967

[26] KAGOME ANTIFERROMAGNET WITH DEFECTS - SATISFACTION, FRUSTRATION, AND SPIN FOLDING IN A RANDOM SPIN SYSTEM [J].

SHENDER, EF ;

CHEREPANOV, VB ;

HOLDSWORTH, PCW ;

BERLINSKY, AJ .

PHYSICAL REVIEW LETTERS, 1993, 70 (24) :3812-3815

[27]

SHENDER EF, 1982, ZH EKSP TEOR FIZ, V56, P178

[28] QUANTUM TUNNELING OF MAGNETIZATION IN SOLIDS [J].

STAMP, PCE ;

CHUDNOVSKY, EM ;

BARBARA, B .

INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 1992, 6 (09) :1355-1473

[29]

Thorpe M. F., 1982, NATO ADV STUDY I S B, V78, P85

[30] ORDER AS AN EFFECT OF DISORDER [J].

VILLAIN, J ;

BIDAUX, R ;

CARTON, JP ;

CONTE, R .

JOURNAL DE PHYSIQUE, 1980, 41 (11) :1263-1272

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