OBSERVATION OF S = 1/2 DEGREES OF FREEDOM IN AN S = 1 LINEAR-CHAIN HEISENBERG-ANTIFERROMAGNET

被引：363

作者：

HAGIWARA, M

KATSUMATA, K

AFFLECK, I

HALPERIN, BI

RENARD, JP

机构：

[1] UNIV BRITISH COLUMBIA,CANADIAN INST ADV RES,VANCOUVER V6T 2A6,BC,CANADA

[2] UNIV BRITISH COLUMBIA,DEPT PHYS,VANCOUVER V6T 2A6,BC,CANADA

[3] HARVARD UNIV,LYMAN LAB PHYS,CAMBRIDGE,MA 02138

[4] UNIV PARIS 11,INST ELECTR FONDAMENTALE,F-91405 ORSAY,FRANCE

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 65卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.65.3181

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

THe ground state of the typical spin-1 linear-chain Heisenberg antiferromagnet Ni(C2H8N2)2NO2(ClO4) containing a small amount of Cu2+ is studied by the electron-spin-resonance (ESR) technique. The ESR results are qualitatively explained by the model that the valence bonds are broken at the Cu2+ sites resulting in spin-1/2 states at the Ni2+ sites neighboring the Cu2+. Thus the present study gives experimental evidence for the existence of the valence-bond-solid ground state in S=1 linear-chain Heisenberg antiferromagnets. © 1990 The American Physical Society.

引用

页码：3181 / 3184

页数：4

共 18 条

[1] RIGOROUS RESULTS ON VALENCE-BOND GROUND-STATES IN ANTIFERROMAGNETS
AFFLECK, I
KENNEDY, T
LIEB, EH
TASAKI, H
[J]. PHYSICAL REVIEW LETTERS, 1987, 59 (07) : 799 - 802
[2] VALENCE BOND GROUND-STATES IN ISOTROPIC QUANTUM ANTIFERROMAGNETS
AFFLECK, I
KENNEDY, T
LIEB, EH
TASAKI, H
[J]. COMMUNICATIONS IN MATHEMATICAL PHYSICS, 1988, 115 (03) : 477 - 528
[3] RESONATING VALENCE BONDS - NEW KIND OF INSULATOR
ANDERSON, PW
[J]. MATERIALS RESEARCH BULLETIN, 1973, 8 (02) : 153 - 160
[4] GROUND-STATE PROPERTIES OF A SPIN-1 ANTI-FERROMAGNETIC CHAIN
BOTET, R
JULLIEN, R
[J]. PHYSICAL REVIEW B, 1983, 27 (01): : 613 - 615
[5] FINITE-SIZE-SCALING STUDY OF THE SPIN-1 HEISENBERG-ISING CHAIN WITH UNIAXIAL ANISOTROPY
BOTET, R
JULLIEN, R
KOLB, M
[J]. PHYSICAL REVIEW B, 1983, 28 (07): : 3914 - 3921
[6] EXPERIMENTAL-EVIDENCE FOR THE HALDANE GAP IN A SPIN-1, NEARLY ISOTROPIC, ANTIFERROMAGNETIC CHAIN
BUYERS, WJL
MORRA, RM
ARMSTRONG, RL
HOGAN, MJ
GERLACH, P
HIRAKAWA, K
[J]. PHYSICAL REVIEW LETTERS, 1986, 56 (04) : 371 - 374
[7] NON-LINEAR FIELD-THEORY OF LARGE-SPIN HEISENBERG ANTI-FERROMAGNETS - SEMI-CLASSICALLY QUANTIZED SOLITONS OF THE ONE-DIMENSIONAL EASY-AXIS NEEL STATE
HALDANE, FDM
[J]. PHYSICAL REVIEW LETTERS, 1983, 50 (15) : 1153 - 1156
[8] MAGNETIZATION PROCESS OF AN S=1 LINEAR-CHAIN HEISENBERG-ANTIFERROMAGNET
KATSUMATA, K
HORI, H
TAKEUCHI, T
DATE, M
YAMAGISHI, A
RENARD, JP
[J]. PHYSICAL REVIEW LETTERS, 1989, 63 (01) : 86 - 88
[9] EXACT DIAGONALIZATIONS OF OPEN SPIN-1 CHAINS
KENNEDY, T
[J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 1990, 2 (26) : 5737 - 5745
[10] CRYSTAL-STRUCTURES, MAGNETIC-ANISOTROPY PROPERTIES, AND ORBITAL INTERACTIONS IN CATENA-(MU-NITRITO)-BIS(ETHYLENEDIAMINE)NICKEL(II) PERCHLORATE AND TRIIODIDE
MEYER, A
GLEIZES, A
GIRERD, JJ
VERDAGUER, M
KAHN, O
[J]. INORGANIC CHEMISTRY, 1982, 21 (05) : 1729 - 1739

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