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Quantum phase transition and thermodynamic properties of a fourfold magnetic periodic system
S. L. Wang; R. X. Li; L. J. Ding; H. H. Fu; S. C. Zhu; Y. Ni; Y. Meng; K. L. Yao
2014
Source PublicationJournal of Magnetism and Magnetic Materials
ISSN0304-8853
Volume371Pages:77-81
AbstractBased on the experimental synthesis of organic compound verdazyl radical beta-3-(2,6-dichlorophenyl)-1,5-diphenylverdazyl, consisting of four antiferromagnetic couplings, we study the magnetic properties and thermodynamic behaviors for different antiferromagnetic interactions using Green's function theory. Under different fields, there are five regimes containing two gapless phases and three magnetization plateaus (M=0, 1/2 and saturated magnetization) distinguished by four critical lines, which are evidenced by the two site entanglement entropy and closely related to the energy spectra. In addition, we calculate the susceptibility and specific heat, to demonstrate the low-lying excitations at low temperatures. It will provide guidance for us to synthesize varieties of unconventional magnetic materials, and stimulate future studies on quantum spin systems. (C) 2014 Elsevier B.V. All rights reserved.
description.department[wang, shuling ; li, ruixue ; fu, hua-hua ; zhu, si-cong ; yao, kailun] huazhong univ sci & technol, sch phys, wuhan 430074, peoples r china. [wang, shuling ; li, ruixue ; fu, hua-hua ; zhu, si-cong ; yao, kailun] huazhong univ sci & technol, wuhan natl high magnet field ctr, wuhan 430074, peoples r china. [ding, linjie] china three gorges univ, dept phys, yi chang 443002, peoples r china. [ni, yun] huazhong univ sci & technol, wenhua coll, wuhan 430074, peoples r china. [meng, yan] xingtai univ, dept phys, xingtai 054001, peoples r china. [yao, kailun] chinese acad sci, int ctr mat phys, shenyang 110015, peoples r china. ; yao, kl (reprint author), huazhong univ sci & technol, sch phys, wuhan 430074, peoples r china. ; wangshuling0324.student@sina.com
KeywordThermodynamic Magnetization Plateau Energy Spectra Chain State S=1/2
URL查看原文
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/73421
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
S. L. Wang,R. X. Li,L. J. Ding,et al. Quantum phase transition and thermodynamic properties of a fourfold magnetic periodic system[J]. Journal of Magnetism and Magnetic Materials,2014,371:77-81.
APA S. L. Wang.,R. X. Li.,L. J. Ding.,H. H. Fu.,S. C. Zhu.,...&K. L. Yao.(2014).Quantum phase transition and thermodynamic properties of a fourfold magnetic periodic system.Journal of Magnetism and Magnetic Materials,371,77-81.
MLA S. L. Wang,et al."Quantum phase transition and thermodynamic properties of a fourfold magnetic periodic system".Journal of Magnetism and Magnetic Materials 371(2014):77-81.
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