Conjugated Conducting PolymersHelmut G. Kiess, Dionys Baeriswyl |
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Page 45
... parameter . For smally , the total energy still has two minima as a function of the dimeri- zation parameter ; however they are no longer degenerate . Empirically , the structure of Fig . 2.2a is preferred . Since the two bond ...
... parameter . For smally , the total energy still has two minima as a function of the dimeri- zation parameter ; however they are no longer degenerate . Empirically , the structure of Fig . 2.2a is preferred . Since the two bond ...
Page 59
... parameter is of course the dimensionless e - p coupling parameter 2 , which depends on the bandwidth 4to , the electron - phonon coupling & and the elastic force constant K through ( 2.45 ) . In order to estimate 2 it is important to ...
... parameter is of course the dimensionless e - p coupling parameter 2 , which depends on the bandwidth 4to , the electron - phonon coupling & and the elastic force constant K through ( 2.45 ) . In order to estimate 2 it is important to ...
Page 68
... parameter : a neutral kink in the BOW order parameter introduces a local SDW , whereas a charged kink in the BOW order parameter leads to a local CDW . In the following we shall focus exclusively on the model for trans- ( CH ) x with ...
... parameter : a neutral kink in the BOW order parameter introduces a local SDW , whereas a charged kink in the BOW order parameter leads to a local CDW . In the following we shall focus exclusively on the model for trans- ( CH ) x with ...
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A.J. Heeger atoms Baeriswyl band band gap behaviour bipolarons bond alternation bond lengths calculations chain charge carriers charged solitons Chem chemical shift cis-(CH conducting polymers configuration conjugated polymers Coulomb interaction coupling Cryst D.K. Campbell decreases defects dimerization discussed dopant dopant concentration dopant molecules 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 Kivelson lattice Lett linewidth magnetic metallic molecular neutral solitons nonlinear nonlinear optical nuclear observed 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 Solid State Commun spectra spectrum spin density SSH model susceptibility symmetry Synth theoretical theory thermoelectric coefficient trans trans-(CH trans-polyacetylene transition triplet valence bond values Vardeny