Properties of a classical spin liquid: The Heisenberg pyrochlore antiferromagnet

被引：401

作者：

Moessner, R ^{[1
]}

Chalker, JT ^{[1
]}

机构：

[1] Univ Oxford, Oxford OX1 3NP, England

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.80.2929

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the low-temperature behavior of the classical Heisenberg antiferromagnet with nearest neighbor interactions on the pyrochlore lattice. Because of geometrical frustration, the ground state of this model has an extensive number of degrees of freedom. We show, by analyzing the effects of small fluctuations around the ground-state manifold, and from the results of Monte Carlo and molecular dynamics simulations, that the system is disordered at all temperatures T and has a finite relaxation time, which varies as T-1 for small T.

引用

收藏

页码：2929 / 2932

页数：4

相关论文

共 24 条

[1] ORDER BY DISORDER IN AN ANISOTROPIC PYROCHLORE LATTICE ANTIFERROMAGNET [J].

BRAMWELL, ST ;

GINGRAS, MJP ;

REIMERS, JN .

JOURNAL OF APPLIED PHYSICS, 1994, 75 (10) :5523-5525

[2] HIDDEN ORDER IN A FRUSTRATED SYSTEM - PROPERTIES OF THE HEISENBERG KAGOME ANTIFERROMAGNET [J].

CHALKER, JT ;

HOLDSWORTH, PCW ;

SHENDER, EF .

PHYSICAL REVIEW LETTERS, 1992, 68 (06) :855-858

[3] Muon spin relaxation investigation of the spin dynamics of geometrically frustrated antiferromagnets Y2Mo2O7 and Tb2Mo2O7 [J].

Dunsiger, SR ;

Kiefl, RF ;

Chow, KH ;

Gaulin, BD ;

Gingras, MJP ;

Greedan, JE ;

Keren, A ;

Kojima, K ;

Luke, GM ;

MacFarlane, WA ;

Raju, NP ;

Sonier, JE ;

Uemura, YJ ;

Wu, WD .

PHYSICAL REVIEW B, 1996, 54 (13) :9019-9022

[4] SPIN FREEZING IN THE GEOMETRICALLY FRUSTRATED PYROCHLORE ANTIFERROMAGNET TB2MO2O7 [J].

GAULIN, BD ;

REIMERS, JN ;

MASON, TE ;

GREEDAN, JE ;

TUN, Z .

PHYSICAL REVIEW LETTERS, 1992, 69 (22) :3244-3247

[5] Static critical behavior of the spin-freezing transition in the geometrically frustrated pyrochlore antiferromagnet Y2Mo2O7 [J].

Gingras, MJP ;

Stager, CV ;

Raju, NP ;

Gaulin, BD ;

Greedan, JE .

PHYSICAL REVIEW LETTERS, 1997, 78 (05) :947-950

[6] MAGNETIC-STRUCTURE OF THE SPIN-LIQUID STATE IN A FRUSTRATED PYROCHLORE [J].

HARRIS, MJ ;

ZINKIN, MP ;

TUN, Z ;

WANKLYN, BM ;

SWAINSON, IP .

PHYSICAL REVIEW LETTERS, 1994, 73 (01) :189-192

[7] MAGNETIC EXCITATIONS IN A HIGHLY FRUSTRATED PYROCHLORE ANTIFERROMAGNET [J].

HARRIS, MJ ;

ZINKIN, MP ;

ZEISKE, T .

PHYSICAL REVIEW B, 1995, 52 (02) :R707-R710

[8] ORDERING DUE TO DISORDER IN A FRUSTRATED VECTOR ANTIFERROMAGNET [J].

HENLEY, CL .

PHYSICAL REVIEW LETTERS, 1989, 62 (17) :2056-2059

[9] CLASSICAL ANTIFERROMAGNETS ON THE KAGOME LATTICE [J].

HUSE, DA ;

RUTENBERG, AD .

PHYSICAL REVIEW B, 1992, 45 (13) :7536-7539

[10] DYNAMICAL SIMULATION OF SPINS ON KAGOME AND SQUARE LATTICES [J].

KEREN, A .

PHYSICAL REVIEW LETTERS, 1994, 72 (20) :3254-3257