Conjugated Conducting PolymersHelmut G. Kiess, Dionys Baeriswyl |
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Page 15
... calculations , which start from ( 2.3 ) and solve this many - body problem approxi- mately and ( 2 ) model calculations which replace ( 2.3 ) by a simpler , parametrized Hamiltonian , the properties of which can hopefully be obtained in ...
... calculations , which start from ( 2.3 ) and solve this many - body problem approxi- mately and ( 2 ) model calculations which replace ( 2.3 ) by a simpler , parametrized Hamiltonian , the properties of which can hopefully be obtained in ...
Page 53
... calculations [ 2.141 ] . The system has short - range antiferro- magnetic correlations but no long - range order . This remains true even in the large U limit ( i.e. for the Heisenberg model ) where the spin - spin correlation function ...
... calculations [ 2.141 ] . The system has short - range antiferro- magnetic correlations but no long - range order . This remains true even in the large U limit ( i.e. for the Heisenberg model ) where the spin - spin correlation function ...
Page 63
... calculations performed in this limit are not expected to be immediately relevant to л - conjugated polymers , they ... calculation requires knowing the matrix elements of the Hamiltonian between all possible HF configurations ; simple ...
... calculations performed in this limit are not expected to be immediately relevant to л - conjugated polymers , they ... calculation requires knowing the matrix elements of the Hamiltonian between all possible HF configurations ; simple ...
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Common terms and phrases
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