Conjugated Conducting PolymersHelmut G. Kiess, Dionys Baeriswyl |
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Page 32
... ' ivμ ) . Inserting this ansatz into ( 2.25 ) gives - ( ε + 2to cos k ) uk — ( 4。 sink ) ʊ = 0 ( ε - 2to cos k ) v - ( 4o sink ) u1 = 0 . ( 2.40 ) ( 2.41a ) ( 2.41b ) 0.5 ε / W do -Do ( c ) ε 32 D. Baeriswyl et al . Bond Alternation.
... ' ivμ ) . Inserting this ansatz into ( 2.25 ) gives - ( ε + 2to cos k ) uk — ( 4。 sink ) ʊ = 0 ( ε - 2to cos k ) v - ( 4o sink ) u1 = 0 . ( 2.40 ) ( 2.41a ) ( 2.41b ) 0.5 ε / W do -Do ( c ) ε 32 D. Baeriswyl et al . Bond Alternation.
Page 89
... bonds and four bond alternation reversals , corresponding to four solitons , e the dominant configuration of the 21A , state , involving two bond alternation reversals , corresponding to two solitons . In VB notation , a line linking ...
... bonds and four bond alternation reversals , corresponding to four solitons , e the dominant configuration of the 21A , state , involving two bond alternation reversals , corresponding to two solitons . In VB notation , a line linking ...
Page 180
... bond alternation , they calculated an optical gap of about 2.2 eV for a chain of infinite length . However , since the experimentally observed bond alternation requires electron - phonon coupling , the electron - electron interaction ...
... bond alternation , they calculated an optical gap of about 2.2 eV for a chain of infinite length . However , since the experimentally observed bond alternation requires electron - phonon coupling , the electron - electron interaction ...
Contents
Introduction | 1 |
An Overview of the Theory of лConjugated Polymers | 7 |
7 | 65 |
Copyright | |
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A.J. Heeger atoms Baeriswyl band band gap behaviour bipolarons bond alternation bond lengths calculations chain charged solitons Chem chemical shift cis-(CH conducting polymers configuration conjugated polymers Coulomb interactions coupling Cryst D.K. Campbell defects dependence dimerization discussed dopant doping doping levels e-e interactions electron correlation electron spin electron-electron interactions electron-phonon ENDOR energy excitations exciton experimental finite polyenes frequency function Hamiltonian Hartree-Fock hopping Hubbard model Hückel inter-chain kink lattice Lett linewidth magnetic Metals molecular molecules neutral solitons nonlinear nonlinear optical nuclear observed obtained one-dimensional optical absorption optical gap parameter peak Peierls Peierls-Hubbard model phonon Phys polarons polyacetylene polyenes polypyrrole polythiophene properties proton quantum quasi-particles Raman relaxation resonance Sect shown in Fig Solid State Commun spectra spectrum spin density SSH model structure susceptibility symmetry Synth temperature theoretical theory trans trans-(CH trans-polyacetylene transition triplet valence bond values Vardeny