QUANTUM ANTIFERROMAGNETISM IN 2 DIMENSIONS

被引：9

作者：

CAPELLMANN, H ^{[1
]}

LOTFERING, J ^{[1
]}

SCHARPF, O ^{[1
]}

机构：

[1] INST MAX VON LAUE PAUL LANGEVIN, F-38042 GRENOBLE, FRANCE

来源：

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER | 1992年 / 88卷 / 02期

关键词：

D O I：

10.1007/BF01323570

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We study the spin dynamics of the 2-dimensional spin 1/2 Heisenberg model at finite temperature T, in particular the frequency region omega < T much less than J (the coupling constant). The main conclusion reached is that the spin fluctuations have relaxational character, no propagating spin waves exist for omega < T. Comparison with experimental results on La2CuO4 give good agreement. Similarities and differences to previous theoretical treatments are discussed.

引用

页码：181 / 187

页数：7

共 17 条

[1] LOW-TEMPERATURE BEHAVIOR OF TWO-DIMENSIONAL QUANTUM ANTIFERROMAGNETS [J].

CHAKRAVARTY, S ;

HALPERIN, BI ;

NELSON, DR .

PHYSICAL REVIEW LETTERS, 1988, 60 (11) :1057-1060

[2] TWO-DIMENSIONAL QUANTUM HEISENBERG-ANTIFERROMAGNET AT LOW-TEMPERATURES [J].

CHAKRAVARTY, S ;

HALPERIN, BI ;

NELSON, DR .

PHYSICAL REVIEW B, 1989, 39 (04) :2344-2371

[3] STATIC AND DYNAMIC SPIN CORRELATIONS IN PURE AND DOPED LA2CUO4 [J].

ENDOH, Y ;

YAMADA, K ;

BIRGENEAU, RJ ;

GABBE, DR ;

JENSSEN, HP ;

KASTNER, MA ;

PETERS, CJ ;

PICONE, PJ ;

THURSTON, TR ;

TRANQUADA, JM ;

SHIRANE, G ;

HIDAKA, Y ;

ODA, M ;

ENOMOTO, Y ;

SUZUKI, M ;

MURAKAMI, T .

PHYSICAL REVIEW B, 1988, 37 (13) :7443-7453

[4] LOW-TEMPERATURE BEHAVIOR OF TWO-DIMENSIONAL QUANTUM ANTIFERROMAGNETS - COMMENT [J].

GREMPEL, DR .

PHYSICAL REVIEW LETTERS, 1988, 61 (08) :1041-1041

[5] SPIN DYNAMICS IN THE 2-DIMENSIONAL ANTIFERROMAGNET LA2CUO4 [J].

HAYDEN, SM ;

AEPPLI, G ;

MOOK, HA ;

CHEONG, SW ;

FISK, Z .

PHYSICAL REVIEW B, 1990, 42 (16) :10220-10225

[6]

Lovesey S.W., 1986, THEORY NEUTRON SCATT, V2

[7] THE SPIN-1/2 HEISENBERG-ANTIFERROMAGNET ON A SQUARE LATTICE AND ITS APPLICATION TO THE CUPROUS OXIDES [J].

MANOUSAKIS, E .

REVIEWS OF MODERN PHYSICS, 1991, 63 (01) :1-62

[8] A LATTICE MODEL OF LIQUID HELIUM .1. [J].

MATSUBARA, T ;

MATSUDA, H .

PROGRESS OF THEORETICAL PHYSICS, 1956, 16 (06) :569-582

[9] A LATTICE MODEL OF LIQUID HELIUM .2. [J].

MATSUDA, H ;

MATSUBARA, T .

PROGRESS OF THEORETICAL PHYSICS, 1957, 17 (01) :19-29

[10]

MATTA GT, 1989, PHYS REV B, V39, P9768

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