ON THE GROUND-STATE PHASE-TRANSITION OF THE SPIN 1/2 XXZ MODEL ON THE SQUARE LATTICE

被引：8

作者：

KIKUCHI, M

OKABE, Y

MIYASHITA, S

机构：

[1] TOHOKU UNIV,FAC SCI,DEPT PHYS,SENDAI,MIYAGI 980,JAPAN

[2] KYOTO UNIV,COLL LIBERAL ARTS & SCI,DEPT PHYS,KYOTO 606,JAPAN

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1990年 / 59卷 / 02期

关键词：

D O I：

10.1143/JPSJ.59.492

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the effect of anisotropy for the ground state of the spin 1/2 antifer-romagnet on the square lattice by diagonalizing the Hamiltonian numerically. The symmetry change of the ground state at the isotropic point is discussed. © 1990, THE PHYSICAL SOCIETY OF JAPAN. All rights reserved.

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页码：492 / 496

页数：5

相关论文

共 25 条

[1] TWO-DIMENSIONAL HEISENBERG-ANTIFERROMAGNET - A NUMERICAL STUDY [J].

BARNES, T ;

SWANSON, ES .

PHYSICAL REVIEW B, 1988, 37 (16) :9405-9409

[2]

BARNES T, 1989, PHYS REV B, V39, P9357

[3] MONTE-CARLO STUDY OF THE QUANTUM SPIN-1/2 HEISENBERG-ANTIFERROMAGNET ON THE SQUARE LATTICE [J].

GOMEZSANTOS, G ;

JOANNOPOULOS, JD ;

NEGELE, JW .

PHYSICAL REVIEW B, 1989, 39 (07) :4435-4443

[4] GROUND-STATE PROPERTIES OF THE TWO-DIMENSIONAL ANTIFERROMAGNETIC HEISENBERG-MODEL [J].

GROSS, M ;

SANCHEZVELASCO, E ;

SIGGIA, E .

PHYSICAL REVIEW B, 1989, 39 (04) :2484-2493

[5] GROUND-STATE STAGGERED MAGNETIZATION OF TWO-DIMENSIONAL QUANTUM HEISENBERG ANTIFERROMAGNETS [J].

HUSE, DA .

PHYSICAL REVIEW B, 1988, 37 (04) :2380-2382

[6]

KAPLAN TS, PREPRINT

[7] EXISTENCE OF NEEL ORDER IN SOME SPIN-1/2 HEISENBERG ANTIFERROMAGNETS [J].

KENNEDY, T ;

LIEB, EH ;

SHASTRY, BS .

JOURNAL OF STATISTICAL PHYSICS, 1988, 53 (5-6) :1019-1030

[8] EXACT DIAGONALIZATION STUDY OF THE SPIN 1/2 XXZ MODEL ON THE 4X4 SQUARE LATTICE [J].

KIKUCHI, M ;

OKABE, Y .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1989, 58 (02) :679-683

[9] MONTE-CARLO STUDY OF THE TWO-DIMENSIONAL SPIN-1/2 QUANTUM HEISENBERG-MODEL - SPIN CORRELATIONS IN LA2CUO4 [J].

MANOUSAKIS, E ;

SALVADOR, R .

PHYSICAL REVIEW B, 1989, 39 (01) :575-585

[10] LONG-RANGE CORRELATIONS IN THE TWO-DIMENSIONAL SPIN-1/2 ANTIFERROMAGNETIC HEISENBERG-MODEL - A QUANTUM MONTE-CARLO STUDY [J].

MANOUSAKIS, E ;

SALVADOR, R .

PHYSICAL REVIEW LETTERS, 1988, 60 (09) :840-843