Thermodynamics of a quasi-one-dimensional spin system for molecule-based ferrimagnets

CORC > 金属研究所 > 中国科学院金属研究所

	Thermodynamics of a quasi-one-dimensional spin system for molecule-based ferrimagnets
	K. L. Yao ; H. H. Fu ; Z. L. Liu
刊名	Solid State Communications
	2005
卷号	135 期号:3 页码:197-202
关键词	molecule-based ferrimagnets thermodynamics transfer matrix method simple classical pictures numerical-calculations ferromagnet breakdown radicals
ISSN号	0038-1098
中文摘要	A physical picture of electron spin alignments in organic molecule-based ferrimagnets is given from numerical calculations of magnetic specific heat (C) and magnetic susceptibility (chi) as functions of temperature and static magnetic field (B) in terms of an Ising Hamiltonian for an alternating spin chain. The double-peak structure of specific heat appears for different parameter ratios and different magnetic field B, indicating that one peak originates from the ferromagnetic nature and the other from the antiferromagnetic nature. Meanwhile, we study Successively the influence of intermolecular and intramolecular interaction on the magnetic susceptibility, showing that the ferrornagnetic spin alignment in the alternating molecular chains of biradicals and monoradicals is equivalent to the ferromagnetic alignment of the effective S=1/2 spins. Our results are consistent with those of the Quantum Monte Carlo simulations and the exact diagonalization method and in qualitative agreement with the experimental ones. (c) 2005 Elsevier Ltd. All rights reserved.
原文出处	://WOS:000230378400011
公开日期	2012-04-14
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/35175]
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	K. L. Yao,H. H. Fu,Z. L. Liu. Thermodynamics of a quasi-one-dimensional spin system for molecule-based ferrimagnets[J]. Solid State Communications,2005,135(3):197-202.
APA	K. L. Yao,H. H. Fu,&Z. L. Liu.(2005).Thermodynamics of a quasi-one-dimensional spin system for molecule-based ferrimagnets.Solid State Communications,135(3),197-202.
MLA	K. L. Yao,et al."Thermodynamics of a quasi-one-dimensional spin system for molecule-based ferrimagnets".Solid State Communications 135.3(2005):197-202.