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
Source Publication	PHYSICAL REVIEW B
Keyword	Isotropic Heisenberg Chain Magnetic Excitations Arbitrary Spins Wigner Crystal Exchange Model Thermodynamics La6ca8cu24o41 Temperature Spectrum
Abstract	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
Volume	74 Issue:22 Pages:-
Subject Area	Physics
Indexed By	SCI
Citation statistics	Cited Times:1[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.itp.ac.cn/handle/311006/5826
Collection	SCI期刊论文
Corresponding Author	Lu, HT , Peking Univ, Sch Phys, Beijing 100871, Peoples R China
Recommended Citation 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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