EFFECT OF INTERCHAIN COUPLING ON QUANTUM-LATTICE FLUCTUATION AND FLUCTUATION-INDUCED INTERCHAIN ORDER TRANSITION IN TRANSPOLYACETYLENE

Authors
ZENG SY RAO XS WU CQ SUN X
Citation
Sy. Zeng et al., EFFECT OF INTERCHAIN COUPLING ON QUANTUM-LATTICE FLUCTUATION AND FLUCTUATION-INDUCED INTERCHAIN ORDER TRANSITION IN TRANSPOLYACETYLENE, Chinese Physics Letters, 14(9), 1997, pp. 694-697
Citations number
8
Categorie Soggetti
Physics
Journal title
Chinese Physics Letters → ACNP
ISSN journal
0256307X
Volume
14
Issue
9
Year of publication
1997
Pages
694 - 697
Database
ISI
SICI code
0256-307X(1997)14:9<694:EOICOQ>2.0.ZU;2-R
Abstract
Based on the modified Su-Schrieffer-Heeger Hamiltonian and by adding t he interchain hopping term, we consider the effect of interchain coupl ing on quantum lattice fluctuation in transpolyacetylene. It has been found that the interchain coupling does not always weaken quantum latt ice fluctuation. After overcoming a barrier of 1 eV or so, the quantum lattice fluctuation can induce a transition of interchain order. The physical meaning of these features is discussed.