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Fesser-Bishop-Campbell model

When a negative polaron is formed, one electron is added to the +wg level (Fig. 18c). In this case, three transitions are also expected. Within the Fesser-Bishop-Campbell model, the subgap absorptions due to the Pi and P2 transitions are much stronger than that due to the P3 transition, because the P3 transition is symmetry forbidden. Quantitatively, the intensities of these subgap absorptions are given as a function of the ratio aig/Ag. [Pg.314]

The transition from the —q level is missing, because the level is unoccupied. When a negative bipolaron is formed, two electrons are added to the -b o level and thus two transitions are again expected (Fig. 18e). Within the Fesser-Bishop-Campbell model, the subgap absorption due to the BPj transition is much stronger than that due to the BP3 transition,... [Pg.314]

Fesser K, Bishop AR, Campbell DK (1983) Optical-absorption from polarons in a model of polyacetylene. Phys Rev B 27 4804... [Pg.57]

A. R. Bishop, D. K. Campbell, K. Fesser, Polyacetylene and relativistic field-theory models, Molecular Crystals and Liquid Crystals 1981, 77, 253. [Pg.61]

See other pages where Fesser-Bishop-Campbell model is mentioned: [Pg.10]    [Pg.313]    [Pg.314]    [Pg.314]    [Pg.10]    [Pg.313]    [Pg.314]    [Pg.314]    [Pg.827]    [Pg.841]   
See also in sourсe #XX -- [ Pg.10 ]



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