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Dissociation and Thermodynamic Properties of Bipolarons
Author(s) -
Li YanMin,
Chao K. A.
Publication year - 1986
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221380222
Subject(s) - bipolaron , degenerate energy levels , singlet state , dissociation (chemistry) , polaron , chemical stability , condensed matter physics , triplet state , chemistry , chemical physics , thermodynamics , physics , materials science , quantum mechanics , molecule , electron , excited state
The degenerate perturbation theory is used to calculate the bipolaronic energy bands in various one‐, two‐, and three‐dimensional crystal structures. The dissociation energy of bipolaron is calculated, from which the stability of the bipolaron is investigated. Higher stability is found in lower‐dimensional systems. The triplet bipolaron state is almost as stable as the singlet bipolaron state, and so plays a very important role in determining the thermodynamic properties of bipolaronic systems.