Conjugated Conducting PolymersHelmut G. Kiess, Dionys Baeriswyl |
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Page 71
... dimerization , since there is no effect of U alone in first order [ 2.167 ] . A real space renormalization group approach [ 2.185 ] combines both analytical and numerical techniques . In Fig . 2.26 we show for the Hubbard model the ...
... dimerization , since there is no effect of U alone in first order [ 2.167 ] . A real space renormalization group approach [ 2.185 ] combines both analytical and numerical techniques . In Fig . 2.26 we show for the Hubbard model the ...
Page 106
... dimerization on the amount of disorder and the concomitant evolution of the electronic gap . The homogeneous dimerization is found to vanish for large enough disorder [ 2.376 , 377 ] . Recently , it has been proposed that the electronic ...
... dimerization on the amount of disorder and the concomitant evolution of the electronic gap . The homogeneous dimerization is found to vanish for large enough disorder [ 2.376 , 377 ] . Recently , it has been proposed that the electronic ...
Page 109
... dimerization amplitude [ 2.11 , 393 ] . One may thus wonder whether the dimerization survives quantum fluctuations at all . Both numerical and analytical calculations [ 2.161-163 , 394-397 ] show that the long - range order of the ...
... dimerization amplitude [ 2.11 , 393 ] . One may thus wonder whether the dimerization survives quantum fluctuations at all . Both numerical and analytical calculations [ 2.161-163 , 394-397 ] show that the long - range order of the ...
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Common terms and phrases
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