Magnetic excitations in coupled Haldane spin chains near the quantum critical point

被引：78

作者：

Zheludev, A ^{[1
]}

Masuda, T

Tsukada, I

Uchiyama, Y

Uchinokura, K

Böni, P

Lee, SH

机构：

[1] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA

[2] Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan

[3] Paul Scherrer Inst, CH-5232 Villigen, Switzerland

[4] Natl Inst Stand & Technol, Ctr Neutron Res, Gaithersburg, MD 20899 USA

[5] Univ Tokyo, Dept Adv Mat Sci, Tokyo, Japan

来源：

PHYSICAL REVIEW B | 2000年 / 62卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.62.8921

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Two quasi-one-dimensional S = 1 quantum antiferromagnetic materials, PbNi2V2O8 and SrNi2V2O8, are studied by inelastic neutron scattering on powder samples. A simple model Hamiltonian is proposed for the two systems and used to analyze the data. Quantitative information on in-chain and interchain interactions obtained from this analysis is discussed in the context of qualitatively different ground-state properties: magnetic long-range order in SrNi2V2O8 and disordered "spin liquid" Haldane-gap state in PbNi2V2O8.

引用

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页码：8921 / 8930

页数：10

相关论文

共 32 条

[1] MODEL FOR QUASI-ONE-DIMENSIONAL ANTIFERROMAGNETS - APPLICATION TO CSNICL3 [J].

AFFLECK, I .

PHYSICAL REVIEW LETTERS, 1989, 62 (04) :474-477

[2] EXTENDED HEISENBERG MODELS OF ANTIFERROMAGNETISM - ANALOGIES TO THE FRACTIONAL QUANTUM HALL-EFFECT [J].

AROVAS, DP ;

AUERBACH, A ;

HALDANE, FDM .

PHYSICAL REVIEW LETTERS, 1988, 60 (06) :531-534

[3]

BONI P, UNPUB

[4] EXPERIMENTAL-EVIDENCE FOR THE HALDANE GAP IN A SPIN-1, NEARLY ISOTROPIC, ANTIFERROMAGNETIC CHAIN [J].

BUYERS, WJL ;

MORRA, RM ;

ARMSTRONG, RL ;

HOGAN, MJ ;

GERLACH, P ;

HIRAKAWA, K .

PHYSICAL REVIEW LETTERS, 1986, 56 (04) :371-374

[5] INTEGER VS HALF-INTEGER-SPIN ANTIFERROMAGNETIC CHAINS, AND EXPERIMENTAL TEST OF THE HALDANE CONJECTURE - EXCITATIONS IN THE S=5/2 SYSTEM CSMNI3 VS EXCITATIONS IN THE S=1 CSNICL3 [J].

ENDERLE, M ;

KAKURAI, K ;

CLAUSEN, KN ;

INAMI, T ;

TANAKA, H ;

STEINER, M .

EUROPHYSICS LETTERS, 1994, 25 (09) :717-722

[6] IS HALDANE SINGLET TRIPLET TRANSITION FOUND IN CSNICL3 [J].

ENDERLE, M ;

KAKURAI, K ;

STEINER, M ;

WEINFURTER, H .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1992, 104 (pt 2) :809-810

[7] Longitudinal spin fluctuations of coupled integer-spin chains:: Haldane triplet dynamics in the ordered phase of CsNiCl3 [J].

Enderle, M ;

Tun, Z ;

Buyers, WJL ;

Steiner, M .

PHYSICAL REVIEW B, 1999, 59 (06) :4235-4243

[8] HALDANE GAPS IN A SPIN-1 HEISENBERG CHAIN WITH EASY-PLANE SINGLE-ION-ANISOTROPY [J].

GOLINELLI, O ;

JOLICOEUR, T ;

LACAZE, R .

PHYSICAL REVIEW B, 1992, 45 (17) :9798-9805

[9] CONTINUUM DYNAMICS OF THE 1-D HEISENBERG ANTI-FERROMAGNET - IDENTIFICATION WITH THE O(3) NON-LINEAR SIGMA-MODEL [J].

HALDANE, FDM .

PHYSICS LETTERS A, 1983, 93 (09) :464-468

[10] NON-LINEAR FIELD-THEORY OF LARGE-SPIN HEISENBERG ANTI-FERROMAGNETS - SEMI-CLASSICALLY QUANTIZED SOLITONS OF THE ONE-DIMENSIONAL EASY-AXIS NEEL STATE [J].

HALDANE, FDM .

PHYSICAL REVIEW LETTERS, 1983, 50 (15) :1153-1156

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