DMRG studies on properties of undoped and doped molecule-based ferromagnetic chain

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	DMRG studies on properties of undoped and doped molecule-based ferromagnetic chain
	K. L. Yao ; Y. Qin ; Q. M. Liu ; Z. L. Liu
刊名	Communications in Theoretical Physics
	2005
卷号	44 期号:6 页码:1099-1102
关键词	DMRG antiferromagnetic exchange SDW spin density undoped doped matrix renormalization-group nitrophenyl nitronyl nitroxide system
ISSN号	0253-6102
中文摘要	By using density matrix renormalization group (DMRG) method a model for organic molecule-based ferromagnetic chain is proposed. It is found that the ground states of undoped and doped systems both exhibit ferrimagnetic ordering. The e-e repulsion plays an important role in the stability of the ferromagnetic state either in doped system or undoped system. For the undoped system, each unit cell contains half of the total spins, which is consistent with Lieb's theorem. It is convinced that when the system is doped with one electron, a charge density wave is excited, which decreases the amplitude of spin density wave, therefore acting against the stability of ferromagnetic state.
原文出处	://WOS:000234533600030
公开日期	2012-04-14
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/35180]
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,Y. Qin,Q. M. Liu,et al. DMRG studies on properties of undoped and doped molecule-based ferromagnetic chain[J]. Communications in Theoretical Physics,2005,44(6):1099-1102.
APA	K. L. Yao,Y. Qin,Q. M. Liu,&Z. L. Liu.(2005).DMRG studies on properties of undoped and doped molecule-based ferromagnetic chain.Communications in Theoretical Physics,44(6),1099-1102.
MLA	K. L. Yao,et al."DMRG studies on properties of undoped and doped molecule-based ferromagnetic chain".Communications in Theoretical Physics 44.6(2005):1099-1102.