SPIN STIFFNESS OF CANTED ANTIFERROMAGNETS

被引：23

作者：

AZARIA, P

DELAMOTTE, B

JOLICOEUR, T

MOUHANNA, D

机构：

[1] UNIV PARIS 06,PHYS THEOR & HAUTES ENERGIES LAB,F-75252 PARIS 05,FRANCE

[2] UNIV PARIS 07,F-75221 PARIS 05,FRANCE

[3] CENS,SERV PHYS THEOR,F-91191 GIF SUR YVETTE,FRANCE

来源：

PHYSICAL REVIEW B | 1992年 / 45卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.45.12612

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We use a nonlinear O(3) x O(2)/O(2) sigma model to describe the long-distance properties of two-dimensional classical Heisenberg canted antiferromagnets. The two-loop correlation length as well as the spin stiffness tensor are obtained by means of a renormalization-group calculation. Our results are applied to the triangular antiferromagnet. A discussion of possible comparison with Monte Carlo simulations is finally made.

引用

收藏

页码：12612 / 12615

页数：4

相关论文

共 12 条

[1] NONUNIVERSALITY IN HELICAL AND CANTED-SPIN SYSTEMS [J].

AZARIA, P ;

DELAMOTTE, B ;

JOLICOEUR, T .

PHYSICAL REVIEW LETTERS, 1990, 64 (26) :3175-3178

[2] LOW-TEMPERATURE PROPERTIES OF 2-DIMENSIONAL FRUSTRATED QUANTUM ANTIFERROMAGNETS [J].

AZARIA, P ;

DELAMOTTE, B ;

MOUHANNA, D .

PHYSICAL REVIEW LETTERS, 1992, 68 (11) :1762-1765

[3] RENORMALIZATION OF NONLINEAR SIGMA-MODEL IN 2+ EPSILON-DIMENSIONS-APPLICATION TO HEISENBERG FERROMAGNETS [J].

BREZIN, E ;

ZINJUSTIN, J .

PHYSICAL REVIEW LETTERS, 1976, 36 (13) :691-694

[4] SCALE-INDEPENDENT FLUCTUATIONS OF SPIN STIFFNESS IN THE HEISENBERG-MODEL AND ITS RELATIONSHIP TO UNIVERSAL CONDUCTANCE FLUCTUATIONS [J].

CHAKRAVARTY, S .

PHYSICAL REVIEW LETTERS, 1991, 66 (04) :481-483

[5] NONLINEAR SIGMA-MODELS FOR TRIANGULAR QUANTUM ANTIFERROMAGNETS [J].

DOMBRE, T ;

READ, N .

PHYSICAL REVIEW B, 1989, 39 (10) :6797-6801

[6] NONLINEAR MODELS IN 2 + EPSILON-DIMENSIONS [J].

FRIEDAN, DH .

ANNALS OF PHYSICS, 1985, 163 (02) :318-419

[7]

Jolicoeur T., 1991, Modern Physics Letters B, V5, P593, DOI 10.1142/S021798499100071X

[8] PHASE-TRANSITION OF THE 2-DIMENSIONAL HEISENBERG-ANTIFERROMAGNET ON THE TRIANGULAR LATTICE [J].

KAWAMURA, H ;

MIYASHITA, S .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1984, 53 (12) :4138-4154

[9]

KUNZ H, UNPUB

[10] MONTE-CARLO STUDIES OF SPIN-STIFFNESS FLUCTUATIONS IN THE 2-DIMENSIONAL CLASSICAL HEISENBERG-MODEL [J].

MON, KK .

PHYSICAL REVIEW B, 1991, 44 (13) :6809-6811