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题名: Plaquette order and deconfined quantum critical point in the spin-1 bilinear-biquadratic Heisenberg model on the honeycomb lattice
作者: Zhao, HH ;  Xu, CK ;  Chen, QN ;  Wei, ZC ;  Qin, MP ;  Zhang, GM ;  Xiang, T
刊名: PHYSICAL REVIEW B
出版日期: 2012
卷号: 85, 期号:13, 页码:134416
关键词: TRIANGULAR-LATTICE ;  PHASE-TRANSITIONS ;  LIQUID STATE ;  2 DIMENSIONS ;  ANTIFERROMAGNETS
学科分类: Physics
通讯作者: Zhao, HH (reprint author), Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China.
部门归属: [Zhao, H. H.; Wei, Z. C.; Qin, M. P.; Xiang, T.] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China; [Xu, Cenke] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA; [Chen, Q. N.; Xiang, T.] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China; [Zhang, G. M.] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China; [Zhang, G. M.] Tsinghua Univ, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China
英文摘要: We have precisely determined the ground state phase diagram of the quantum spin-1 bilinear-biquadratic Heisenberg model on the honeycomb lattice using the tensor renormalization group method. We find that the ferromagnetic, ferroquadrupolar, and a large part of the antiferromagnetic phases are stable against quantum fluctuations. However, around the phase where the ground state is antiferroquadrupolar ordered in the classical limit, quantum fluctuations suppress completely all magnetic orders, leading to a plaquette order phase which breaks the lattice symmetry but preserves the spin SU(2) symmetry. On the evidence of our numerical results, the quantum phase transition between the antiferromagnetic phase and the plaquette phase is found to be either a direct second order or a very weak first order transition.
资助者: NSFC; MOST of China; Sloan Research Fellowship
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000302605400002
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15119
Appears in Collections:理论物理所2012年知识产出_期刊论文

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Recommended Citation:
Zhao, HH,Xu, CK,Chen, QN,et al. Plaquette order and deconfined quantum critical point in the spin-1 bilinear-biquadratic Heisenberg model on the honeycomb lattice[J]. PHYSICAL REVIEW B,2012,85(13):134416.
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