Conjugated Conducting PolymersHelmut G. Kiess, Dionys Baeriswyl |
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Page 104
... described by a distribution of values of the parameter Д , a systematic study of the resonant Raman spectra calculations are required for predicting the additional non - universal features which may discriminate between the different ...
... described by a distribution of values of the parameter Д , a systematic study of the resonant Raman spectra calculations are required for predicting the additional non - universal features which may discriminate between the different ...
Page 175
... described by the complex dielectric function & = & 1 ( w ) + iɛ2 ( w ) . For a degenerate semiconductor with Drude behaviour at small frequencies , a vibrational mode in the IR and a bandgap in the visible , the dielectric function has ...
... described by the complex dielectric function & = & 1 ( w ) + iɛ2 ( w ) . For a degenerate semiconductor with Drude behaviour at small frequencies , a vibrational mode in the IR and a bandgap in the visible , the dielectric function has ...
Page 271
... described in the text . The spin concentration of sample B is twice as large as that for sample C and nearly 12 times the value for sample D in [ 5.205 , 206 ] is that of two exchange - coupled spins ( polarons ) exhibiting singlet and ...
... described in the text . The spin concentration of sample B is twice as large as that for sample C and nearly 12 times the value for sample D in [ 5.205 , 206 ] is that of two exchange - coupled spins ( polarons ) exhibiting singlet and ...
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A.J. Heeger atoms Baeriswyl band gap behaviour bipolarons bond alternation bond lengths calculations chain charge carriers charged solitons Chem chemical shift cis-(CH conducting polymers conjugated polymers correlation Coulomb interaction coupling Cryst D.K. Campbell defects dielectric function diffusion dimerization discussed dopant dopant concentration dopant molecules doping doping levels e-e interactions effects electron correlation electron spin electron-electron interactions electron-phonon ENDOR energy excitations exciton experimental frequency function Hamiltonian Hartree-Fock hopping Hubbard model Hückel hyperfine interactions inter-chain Kivelson lattice Lett linewidth magnetic metallic molecular neutral solitons nonlinear nonlinear optical nuclear observed obtained one-dimensional optical absorption optical gap parameters peak Peierls Peierls-Hubbard model phonon Phys polarons polyacetylene polyenes polypyrrole polythiophene properties proton quantum quasi-particles Raman resonance samples Sect shown in Fig spectra spectrum spin density structure symmetry Synth tensor theory trans trans-(CH trans-polyacetylene transition valence values Vardeny