Theoretical Aspects of Conducting Polymers: Electronic Structure and Defect States |
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Page 41
... domain - walls connecting a " phase " with y > 0 to one with y < 0 will be the relevant excitations at finite temperatures besides the small amplitude fluctuations . However the energy of such a domain - wall turns out to be too large ...
... domain - walls connecting a " phase " with y > 0 to one with y < 0 will be the relevant excitations at finite temperatures besides the small amplitude fluctuations . However the energy of such a domain - wall turns out to be too large ...
Page 42
... domain - wall in the inner part . The topological constraints ( the number of sites together with the boundary conditions ) are neces- sary prerequisites for the existence of domain - walls , their particular internal structure however ...
... domain - wall in the inner part . The topological constraints ( the number of sites together with the boundary conditions ) are neces- sary prerequisites for the existence of domain - walls , their particular internal structure however ...
Page 43
... domain - walls . 4.1 The Kink Solution Bond alternation defects interpolating between the · · 43 -
... domain - walls . 4.1 The Kink Solution Bond alternation defects interpolating between the · · 43 -
Common terms and phrases
A.G. MacDiarmid A.J. Heeger A.R. Bishop amplitude Ansatz antikink associated Baeriswyl BdG equations benzene bipolarons bond alternation bond length bond order bond-bond polarizability boundary conditions Brazovskii and Kirova Brédas calculations conducting polymers configuration conjugation continuum limit corresponds Coulomb cut-off density diagonal dimerization disorder distortion dynamical matrix effects elastic energy electron correlation Etemad exciton Fermi Fincher fluctuations force constant function G.B. Street gap equation ground Hamiltonian Hartree-Fock Hellmann-Feynman theorem Hückel Hückel model Hückel theory impurity interaction interchain coupling J.R. Schrieffer Kakitani's Kiess kink kink defect kink-antikink pair Kivelson lattice Lett levels Maki mean-field midgap modes neutral kinks obtained optical absorption optical gap order parameter Peierls phase phonon Phys polaron polyacetylene polypyrrole potential quantum resonance integrals Section self-consistency condition Solid St.Commun soliton solution spin Strässler T-electron T.C. Clarke trans-polyacetylene valence band weak coupling yields Zerbi