Transfer-matrix renormalization group study of spin ladders with cyclic four-spin interactions

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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
ISSN	1098-0121
卷号	74 期号:22 页码:-
学科领域	Physics
收录类别	SCI
引用统计	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
推荐引用方式 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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