Density matrix renormalization group studies on the stability of quasi-1-D undoped and doped polymer ferromagnets

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	Density matrix renormalization group studies on the stability of quasi-1-D undoped and doped polymer ferromagnets
	K. L. Yao; X. X. Liu; Q. M. Liu; G. Y. Sun; Z. L. Liu
	2004
发表期刊	Canadian Journal of Physics
ISSN	0008-4204
卷号	82 期号:2 页码:119-125
摘要	We study the ferromagnetic ground state of the theoretical model proposed for quasi-one-dimensional organic polymer ferromagnets by using the density matrix renormalization group method. We find that the chain-radical interaction, the on-site electron-electron repulsion, and the electron-phonon coupling play important roles in the stability of the ferromagnetic state, whether in doped systems or not. We are convinced that when the system is doped by one electron, a polaron appears, diminishing the stability of the high-spin state.
部门归属	huazhong univ sci & technol, dept phys, wuhan 430074, peoples r china. huazhong univ sci & technol, state key lab laser technol, wuhan 430074, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110015, peoples r china.;yao, kl (reprint author), huazhong univ sci & technol, dept phys, wuhan 430074, peoples r china;mylxwwh@yahoo.com
关键词	Dimensional Organic Ferromagnet Hubbard-model
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WOS记录号	WOS:000220267200004
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/35679
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	K. L. Yao,X. X. Liu,Q. M. Liu,et al. Density matrix renormalization group studies on the stability of quasi-1-D undoped and doped polymer ferromagnets[J]. Canadian Journal of Physics,2004,82(2):119-125.
APA	K. L. Yao,X. X. Liu,Q. M. Liu,G. Y. Sun,&Z. L. Liu.(2004).Density matrix renormalization group studies on the stability of quasi-1-D undoped and doped polymer ferromagnets.Canadian Journal of Physics,82(2),119-125.
MLA	K. L. Yao,et al."Density matrix renormalization group studies on the stability of quasi-1-D undoped and doped polymer ferromagnets".Canadian Journal of Physics 82.2(2004):119-125.