Conjugated Conducting PolymersHelmut G. Kiess, Dionys Baeriswyl |
From inside the book
Results 1-3 of 62
Page 32
... . Inserting this ansatz into ( 2.25 ) gives ( ε + 2to cos k ) ux - ( 4o sink ) v = 0 - - ( ε — 2t 。 cos k ) v — ( 4。 sink ) u1 = 0 . — ( 2.40 ) ( 2.41a ) ( 2.41b ) 0.5 ε / W Ao O -A 。 ε ( 32 D. Baeriswyl et al . Bond Alternation.
... . Inserting this ansatz into ( 2.25 ) gives ( ε + 2to cos k ) ux - ( 4o sink ) v = 0 - - ( ε — 2t 。 cos k ) v — ( 4。 sink ) u1 = 0 . — ( 2.40 ) ( 2.41a ) ( 2.41b ) 0.5 ε / W Ao O -A 。 ε ( 32 D. Baeriswyl et al . Bond Alternation.
Page 89
... bonds and four bond alternation reversals , corresponding to four solitons , e the dominant configuration of the 21A , state , involving two bond alternation reversals , corresponding to two solitons . In VB notation , a line linking ...
... bonds and four bond alternation reversals , corresponding to four solitons , e the dominant configuration of the 21A , state , involving two bond alternation reversals , corresponding to two solitons . In VB notation , a line linking ...
Page 180
... bond alternation , they calculated an optical gap of about 2.2 eV for a chain of infinite length . However , since the experimentally observed bond alternation requires electron - phonon coupling , the electron - electron interaction ...
... bond alternation , they calculated an optical gap of about 2.2 eV for a chain of infinite length . However , since the experimentally observed bond alternation requires electron - phonon coupling , the electron - electron interaction ...
Other editions - View all
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