Theoretical Aspects of Conducting Polymers: Electronic Structure and Defect States |
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Page 56
... valence and conduction bands are only weakly mixed . Consequently the polaron is well described in terms of the " frozen valence band " approximation ( Campbell et al . 1982 ) where it represents - 56 -
... valence and conduction bands are only weakly mixed . Consequently the polaron is well described in terms of the " frozen valence band " approximation ( Campbell et al . 1982 ) where it represents - 56 -
Page 57
... valence band . The polaron mass can be calculated in the same way as the kink mass , using the adiabatic approximation , and it turns out to be even smaller ( Bishop and Campbell 1982 ) . On the other hand there is no simple connection ...
... valence band . The polaron mass can be calculated in the same way as the kink mass , using the adiabatic approximation , and it turns out to be even smaller ( Bishop and Campbell 1982 ) . On the other hand there is no simple connection ...
Page 91
... valence band and one from the conduction band , thus ( B6 ) ( B7 ) ( B8 ) compensating the two levels in the gap . It is - 91 - f+ ...
... valence band and one from the conduction band , thus ( B6 ) ( B7 ) ( B8 ) compensating the two levels in the gap . It is - 91 - f+ ...
Common terms and phrases
A.J. Heeger absorption amplitude approximation associated assume Baeriswyl band becomes Bishop bond alternation bond length bond order boundary calculations Campbell chain changes charge conducting configuration consider constant continuum limit correlation corresponds coupling defect density depend described determined dimerization discrete discuss disorder distortion dynamical effects electronic energy equation et al expected experiments extent field fluctuations force function given gives ground Hamiltonian hand Hückel impurity increasing integral interaction interchain coupling involved kink lattice leads Lett levels limit MacDiarmid Mele modes Notice observed obtained optical parameter particular Peierls phase phonon Phys Physics points polaron polyacetylene polymers potential presented produced properties proposed represents respect Rice Schrieffer self-consistency shown single Solid soliton solution strongly structure temperature theory whereas yields