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Lu, H. T.; Sun, L. Q.; Qin, Shaojin; Wang, Y. J.; Lu, HT , Peking Univ, Sch Phys, Beijing 100871, Peoples R China
Transfer-matrix renormalization group study of spin ladders with cyclic four-spin interactions
发表期刊PHYSICAL REVIEW B
关键词Isotropic Heisenberg Chain Magnetic Excitations Arbitrary Spins Wigner Crystal Exchange Model Thermodynamics La6ca8cu24o41 Temperature Spectrum
摘要The temperature dependence of the specific heat and spin susceptibility of spin ladders with cyclic four-spin interactions in the rung-singlet phase is explored by making use of the transfer-matrix renormalization group method. The values of the spin gap are extracted from the specific heat and susceptibility, respectively. It is found that for different relative strengths between interchain and intrachain interactions, the spin gap is approximately linear with the cyclic four-spin interaction in the region far away from the critical point. Furthermore, we show that the dispersion for the one-triplet magnon branch can be obtained by numerically fitting the partition function.
2006
ISSN1098-0121
卷号74期号:22页码:-
学科领域Physics
收录类别SCI
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5826
专题理论物理所科研产出_SCI论文
通讯作者Lu, HT , Peking Univ, Sch Phys, Beijing 100871, Peoples R China
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GB/T 7714
Lu, H. T.,Sun, L. Q.,Qin, Shaojin,et al. Transfer-matrix renormalization group study of spin ladders with cyclic four-spin interactions[J]. PHYSICAL REVIEW B,2006,74(22):-.
APA Lu, H. T.,Sun, L. Q.,Qin, Shaojin,Wang, Y. J.,&Lu, HT , Peking Univ, Sch Phys, Beijing 100871, Peoples R China.(2006).Transfer-matrix renormalization group study of spin ladders with cyclic four-spin interactions.PHYSICAL REVIEW B,74(22),-.
MLA Lu, H. T.,et al."Transfer-matrix renormalization group study of spin ladders with cyclic four-spin interactions".PHYSICAL REVIEW B 74.22(2006):-.
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