Possible nonlinear excitations in quasi-one-dimensional halogen-bridged binuclear metal complexes

Article

关键词: MIXED-VALENCE COMPLEX;    PLATINUM DIPHOSPHITE COMPLEXES;    LINEAR-CHAIN SEMICONDUCTORS;    OPTICAL-ABSORPTION SPECTRA;    CHARGE-TRANSFER EXCITATION;    LATTICE-RELAXATION;    SOLITON EXCITATIONS;    CONDUCTING POLYMERS;    CRYSTAL-STRUCTURES;    PT-2(DTA)(4)I DTA;   

DOI  :  10.1103/PhysRevB.66.165113

来源: SCIE

【 摘 要 】

We investigate possible localized intragap states in quasi-one-dimensional halogen-bridged binuclear metal (MMX) complexes. Within a coupled electron-phonon model, soliton and polaron excitations in the two distinct ground states of MMX chains are numerically calculated and compared. Their effective masses are predicted for typical MMX compounds. Making a continuum-model analysis as well, we further reveal their scaling properties with particular emphasis on the analogy between MMX chains and trans-polyacetylene.

【 授权许可】

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