Conjugated Conducting PolymersHelmut G. Kiess, Dionys Baeriswyl |
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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 coefficient conducting polymers configuration conjugated polymers correlation Coulomb interactions coupling Cryst D.K. Campbell defects dependence dimerization discussed dopant doping doping levels e-e interactions effects electron spin electron-electron interactions electron-phonon ENDOR energy excitations exciton experimental Fermi finite polyenes frequency function ground Hamiltonian Hartree-Fock hopping Hubbard model Hückel independent-electron inter-chain kink lattice Lett linewidth magnetic metallic molecular neutral solitons nonlinear nonlinear optical nuclear observed obtained one-dimensional optical absorption optical gap pair 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 soliton spectra spectrum spin density SSH model structure susceptibility symmetry Synth temperature theoretical theory trans trans-(CH trans-polyacetylene transition V₁ valence bond values Vardeny