Exact results of a dimerized S=1 Ising chain with single-ion anisotropy

IMR OpenIR

	Exact results of a dimerized S=1 Ising chain with single-ion anisotropy
	H. N. Wu; G. Z. Wei; Y. Han; G. Y. Yi; W. J. Gong
	2009
发表期刊	Journal of Magnetism and Magnetic Materials
ISSN	0304-8853
卷号	321 期号:19 页码:3104-3109
摘要	The dimerized spin-1 Ising chain with both longitude and transverse single-ion anisotropies D(z) and D(x) is solved exactly by means of a mapping to the spin-1/2 Ising chain with the alternating transverse fields and the Jordan-Wigner transformation. The analytical expressions of the quasi-particles' spectra Lambda(k), the minimal energy gap Delta(0) for exciting a fermion quasi-particle , the minimal energy gap Delta(h) for exciting a hole, and the ground-state energy E(g) are obtained. The phase diagram of the ground state is also given. The results show that the system exhibits a series of quantum phase transitions depending on the dimerization strength of the crystal fields, while the quantum critical points are determined exactly. (C) 2009 Elsevier B.V. All rights reserved.
部门归属	[wu, haina; wei, guozhu; han, yu; yi, guangyu; gong, weijiang] northeastern univ, coll sci, shenyang 110006, peoples r china. [wei, guozhu] acad sinica, int ctr mat phys, shenyang 110015, peoples r china. [han, yu] liaoning univ, dept phys, shenyang 110036, peoples r china.;wei, gz (reprint author), northeastern univ, coll sci, shenyang 110006, peoples r china;guozhuwei02@sina.com
关键词	Dimerization Spin Ising Chain Single-ion Anisotropy Exact Result Quantum Phase Transition Quantum Phase-transitions Transverse-field Critical-behavior Antiferromagnetic Chain Magnetization Plateaus Ground-state Spin-1/2 Model Compound
URL	查看原文
WOS记录号	WOS:000268022700027
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32424
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	H. N. Wu,G. Z. Wei,Y. Han,et al. Exact results of a dimerized S=1 Ising chain with single-ion anisotropy[J]. Journal of Magnetism and Magnetic Materials,2009,321(19):3104-3109.
APA	H. N. Wu,G. Z. Wei,Y. Han,G. Y. Yi,&W. J. Gong.(2009).Exact results of a dimerized S=1 Ising chain with single-ion anisotropy.Journal of Magnetism and Magnetic Materials,321(19),3104-3109.
MLA	H. N. Wu,et al."Exact results of a dimerized S=1 Ising chain with single-ion anisotropy".Journal of Magnetism and Magnetic Materials 321.19(2009):3104-3109.