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题名: Exact solutions of a class of S=1 quantum Ising spin models
作者: Yang, Zhi-Hua ;  Yang, Li-Ping ;  Wu, Hai-Na ;  Dai, Jianhui ;  Xiang, Tao
刊名: PHYSICAL REVIEW B
出版日期: 2009
卷号: 79, 期号:21, 页码:-
关键词: ANTIFERROMAGNETIC DIMER COMPOUND ;  TRANSVERSE-CRYSTAL-FIELD ;  PHASE-TRANSITIONS ;  THERMODYNAMIC PROPERTIES ;  POLAR-MOLECULES ;  DELTA-CHAIN ;  LATTICE ;  CRITICALITY ;  ALTERNATION ;  STATE
学科分类: Physics
通讯作者: Yang, ZH , Zhejiang Univ, Zhejiang Inst Modern Phys, Hangzhou 310027, Peoples R China
部门归属: [Yang, ZH; Dai, JH] Zhejiang Univ, Zhejiang Inst Modern Phys, Hangzhou 310027, Peoples R China; [Yang, LP; Xiang, T] Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; [Wu, HN] Northeastern Univ, Coll Sci, Shenyang 110006, Peoples R China; [Xiang, T] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China
英文摘要: We propose a hole decomposition scheme to exactly solve a class of spin-1 quantum Ising models with transverse or longitudinal single-ion anisotropy. In this scheme, the spin-1 model is mapped onto a family of the S=1/2 transverse Ising models, characterized by the total number of holes. A recursion formula is derived for the partition function based on the reduced S=1/2 Ising model. This simplifies greatly the summation over all the hole configurations. It allows the thermodynamic quantities to be rigorously determined in the thermodynamic limit. The ground-state phase diagram is determined for both the uniform and dimerized spin chains. The corresponding thermodynamic properties are calculated and discussed.
资助者: National Natural Science Foundation of China; National Program for Basic Research of China; Education Ministry of China[IRT-0754, J20050335118]
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000267699200088
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5301
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Yang, Zhi-Hua,Yang, Li-Ping,Wu, Hai-Na,et al. Exact solutions of a class of S=1 quantum Ising spin models[J]. PHYSICAL REVIEW B,2009,79(21):-.
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