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题名: Partial long-range order in antiferromagnetic Potts models
作者: Qin, MP ;  Chen, QN ;  Xie, ZY ;  Chen, J ;  Yu, JF ;  Zhao, HH ;  Normand, B ;  Xiang, T
刊名: PHYSICAL REVIEW B
出版日期: 2014
卷号: 90, 期号:14, 页码:144424
关键词: HEISENBERG SPIN SYSTEM ;  EVERY PLANAR MAP ;  ISING-MODELS ;  PHASE-TRANSITIONS ;  PARTIAL DISORDER ;  1ST-ORDER TRANSITION ;  GROUND-STATE ;  MONTE-CARLO ;  LATTICE ;  TEMPERATURE
学科分类: Physics
DOI: 10.1103/PhysRevB.90.144424
通讯作者: Qin, MP (reprint author), Chinese Acad Sci, Inst Phys, POB 603, Beijing 100190, Peoples R China.
部门归属: [Qin, M. P. ;  Xie, Z. Y. ;  Chen, J. ;  Yu, J. F. ;  Zhao, H. H. ;  Xiang, T.] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China ;  [Chen, Q. N.] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China ;  [Normand, B.] Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China ;  [Xiang, T.] Collaborat Innovat Ctr Quantum Matter, Beijing, Peoples R China
英文摘要: The Potts model plays an essential role in classical statistical mechanics, illustrating many fundamental phenomena. One example is the existence of partially long-range-ordered states, in which some degrees of freedom remain disordered. This situation may arise from frustration of the interactions, but also from an irregular but unfrustrated lattice structure. We study partial long-range order in a range of antiferromagnetic q-state Potts models on different two-dimensional lattices and for all relevant values of q. We exploit the power of tensor-based numerical methods to evaluate the partition function of these models and hence to extract the key thermodynamic properties (entropy, specific heat, magnetization, and susceptibility) giving deep insight into the phase transitions and ordered states of each system. Our calculations reveal a range of phenomena related to partial ordering, including different types of entropy-driven phase transition, the role of lattice irregularity, very large values of the critical q(c), and double phase transitions.
资助者: National Science Foundation of China [10934008, 10874215, 11174365]; National Basic Research Program of China [2012CB921704, 2011CB309703]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000344022000003
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15612
Appears in Collections:理论物理所2014年知识产出 _期刊论文

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Recommended Citation:
Qin, MP,Chen, QN,Xie, ZY,et al. Partial long-range order in antiferromagnetic Potts models[J]. PHYSICAL REVIEW B,2014,90(14):144424.
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