Spin configurations of pi electrons and dimerization in quasi-one-dimensional organic bipartite lozenge chains

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	Spin configurations of pi electrons and dimerization in quasi-one-dimensional organic bipartite lozenge chains
	Y. F. Duan; K. L. Yao; L. Yi
	2002
发表期刊	Modern Physics Letters B
ISSN	0217-9849
卷号	16 期号:5-6 页码:179-185
摘要	Based on a theoretical model proposed for an organic bipartite lozenge ferrimagnetic chain, the spin configuration of pi electrons and the dimerization are investigated. With the Hartree-Fock approximation, the strong electron-phonon coupling and the electron-electron interaction in the one-dimensional system axe taken into account self-consistently. It is shown that around the middle of the chain appears a pi electron spin polarization cloud with alternation of sign and amplitude of the spin density extending over a certain distance, which extends all over the chain with no decay when the e-e interaction is larger than a critical value. In the stable ferrimagnetic state, the antiferromagnetic exchange interaction between electrons at site A and site B along the chain will become very strong, and almost zero dimerization happens for the chain.
部门归属	huazhong univ sci & technol, dept phys, wuhan 430074, peoples r china. af radar acad, dept basic sci, wuhan 430019, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110015, peoples r china.;duan, yf (reprint author), huazhong univ sci & technol, dept phys, wuhan 430074, peoples r china
关键词	Ferrimagnetic Hubbard Chains Ferromagnet Field
URL	查看原文
WOS记录号	WOS:000175868500004
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/36264
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. F. Duan,K. L. Yao,L. Yi. Spin configurations of pi electrons and dimerization in quasi-one-dimensional organic bipartite lozenge chains[J]. Modern Physics Letters B,2002,16(5-6):179-185.
APA	Y. F. Duan,K. L. Yao,&L. Yi.(2002).Spin configurations of pi electrons and dimerization in quasi-one-dimensional organic bipartite lozenge chains.Modern Physics Letters B,16(5-6),179-185.
MLA	Y. F. Duan,et al."Spin configurations of pi electrons and dimerization in quasi-one-dimensional organic bipartite lozenge chains".Modern Physics Letters B 16.5-6(2002):179-185.