LOCALIZED EXCITATIONS IN COMPETING CHARGE-DENSITY-WAVE AND SPIN-DENSITY-WAVE SYSTEMS

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	LOCALIZED EXCITATIONS IN COMPETING CHARGE-DENSITY-WAVE AND SPIN-DENSITY-WAVE SYSTEMS
	WANG, WZ , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA.; YU, L; SU, ZB; WANG, CL; WANG, WZ
刊名	SYNTHETIC METALS
	1993
卷号	56 期号:40942 页码:3370-3376
关键词	Valence Metal-complexes Soliton Model
ISSN号	0379-6779
英文摘要	The Bogoliubov-de Gennes formalism is used to study the localized excitations within the extended Peierls-Hubbard model describing quasi-one-dimensional systems like MX-chains. The phase diagram is studied as a function of Coulomb interaction U and on-site electron-phonon coupling lambda2. There is no coexistence of homogeneous SDW and CDW states at the mean field level. However, the self-trapped excitons (STE) in the CDW dominating regime contain locally non-vanishing SDW distortions and vice versa. As lambda2 increases, the number of bound states changes from two to four for the exciton case and from two to three for the polaron case. Upon further increase, one type of STE with a certain pattern of SDW distortion and charge transfer is transforming into another type of STE with a different pattern.
学科主题	Physics
URL标识	查看原文
公开日期	2012-08-29
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/12044]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	WANG, WZ , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA.
推荐引用方式 GB/T 7714	WANG, WZ , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA.,YU, L,SU, ZB,et al. LOCALIZED EXCITATIONS IN COMPETING CHARGE-DENSITY-WAVE AND SPIN-DENSITY-WAVE SYSTEMS[J]. SYNTHETIC METALS,1993,56(40942):3370-3376.
APA	WANG, WZ , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA.,YU, L,SU, ZB,WANG, CL,&WANG, WZ.(1993).LOCALIZED EXCITATIONS IN COMPETING CHARGE-DENSITY-WAVE AND SPIN-DENSITY-WAVE SYSTEMS.SYNTHETIC METALS,56(40942),3370-3376.
MLA	WANG, WZ , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA.,et al."LOCALIZED EXCITATIONS IN COMPETING CHARGE-DENSITY-WAVE AND SPIN-DENSITY-WAVE SYSTEMS".SYNTHETIC METALS 56.40942(1993):3370-3376.