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WANG, WZ; WANG, CL; SU, ZB; YU, L; WANG, WZ , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA.
LOCALIZED EXCITATIONS IN COMPETING CHARGE-DENSITY-WAVE AND SPIN-DENSITY-WAVE SYSTEMS
Source PublicationSYNTHETIC METALS
KeywordValence Metal-complexes Soliton Model
AbstractThe 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.
1993
ISSN0379-6779
Volume56Issue:40942Pages:3370-3376
Subject AreaPhysics
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/12044
Collection理论物理所科研产出_SCI论文
Corresponding AuthorWANG, WZ , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA.
Recommended Citation
GB/T 7714
WANG, WZ,WANG, CL,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,WANG, CL,SU, ZB,YU, L,&WANG, WZ , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA..(1993).LOCALIZED EXCITATIONS IN COMPETING CHARGE-DENSITY-WAVE AND SPIN-DENSITY-WAVE SYSTEMS.SYNTHETIC METALS,56(40942),3370-3376.
MLA WANG, WZ,et al."LOCALIZED EXCITATIONS IN COMPETING CHARGE-DENSITY-WAVE AND SPIN-DENSITY-WAVE SYSTEMS".SYNTHETIC METALS 56.40942(1993):3370-3376.
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