TMRG studies on spin alignment in molecule-based ferrimagnetics

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	TMRG studies on spin alignment in molecule-based ferrimagnetics
	Q. M. Liu ; K. L. Yao ; Z. L. Liu
刊名	Physics Letters A
	2005
卷号	338 期号:3-5 页码:315-322
关键词	molecular magnet spin lattice model renormalization group methods ferrimagnetics simple classical pictures crystal-structure breakdown chain
ISSN号	0375-9601
中文摘要	A physical picture of spin alignment in organic molecule-based ferrimagnets is presented from studying the thermal effective magnetic moment of the sublattice by use of the transfer matrix renormalization group. We conclude that the classical antiparallel spin alignment is not the most stable state. The three-spin system tends to parallel alignment when the exchange interaction between the biradical and the monoradical molecules is much weaker than that within the biradical, which can result in the decrease of the effective magnetic moment upon lowering the temperature. More importantly, we give the theoretical evidence that even the antiparallel spin alignment in the biradical-monoradical alternating chain does not necessarily lead to ferrimagnetic spin ordering due to the formation of the spin singlet pairs, which suppresses the ferrimagnetic spin alignment. (c) 2005 Elsevier B.V. All rights reserved.
原文出处	://WOS:000228598000022
公开日期	2012-05-17
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/40006]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	Q. M. Liu,K. L. Yao,Z. L. Liu. TMRG studies on spin alignment in molecule-based ferrimagnetics[J]. Physics Letters A,2005,338(3-5):315-322.
APA	Q. M. Liu,K. L. Yao,&Z. L. Liu.(2005).TMRG studies on spin alignment in molecule-based ferrimagnetics.Physics Letters A,338(3-5),315-322.
MLA	Q. M. Liu,et al."TMRG studies on spin alignment in molecule-based ferrimagnetics".Physics Letters A 338.3-5(2005):315-322.