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

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	Transfer-matrix renormalization group study of spin ladders with cyclic four-spin interactions
	Lu, H. T.; Sun, L. Q.; Qin, Shaojin; Wang, Y. J.; Lu, HT , Peking Univ, Sch Phys, Beijing 100871, Peoples R China
	2006
发表期刊	PHYSICAL REVIEW B
ISSN	1098-0121
卷号	74 期号:22 页码:-
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.
部门归属	Peking Univ, Sch Phys, Beijing 100871, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Chinese Acad Sci, Interdisciplinary Ctr Theoret Studies, Beijing 100080, Peoples R China; Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China
关键词	Isotropic Heisenberg Chain Magnetic Excitations Arbitrary Spins Wigner Crystal Exchange Model Thermodynamics La6ca8cu24o41 Temperature Spectrum
学科领域	Physics
URL	查看原文
收录类别	SCI
WOS记录号	WOS:000243195600083
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1978-2010年知识产出
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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