Conjugated Conducting PolymersHelmut G. Kiess, Dionys Baeriswyl |
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Page 149
... Fermi level is essentially determined by the charge distribution on the gap states . If the Fermi level is shifted beyond the mobility edge by doping , the material becomes metallic and its conductivity does not vanish at absolute zero ...
... Fermi level is essentially determined by the charge distribution on the gap states . If the Fermi level is shifted beyond the mobility edge by doping , the material becomes metallic and its conductivity does not vanish at absolute zero ...
Page 151
... Fermi level is not constant , but varies quadratically , the tem- perature exponent changes from 1/4 to 1/2 [ 3.37 ] . On the other hand , as Overhof and Thomas [ 3.38 ] have pointed out , other density - of - states functions also lead ...
... Fermi level is not constant , but varies quadratically , the tem- perature exponent changes from 1/4 to 1/2 [ 3.37 ] . On the other hand , as Overhof and Thomas [ 3.38 ] have pointed out , other density - of - states functions also lead ...
Page 219
... Fermi level , as in a metal , only those electrons within a range kT of the Fermi level contribute to the susceptibility . In this case and for a free electron gas [ 5.13-16 ] , one has the Pauli susceptibility Xp = 1⁄2μo ( 9μB ) 2N ...
... Fermi level , as in a metal , only those electrons within a range kT of the Fermi level contribute to the susceptibility . In this case and for a free electron gas [ 5.13-16 ] , one has the Pauli susceptibility Xp = 1⁄2μo ( 9μB ) 2N ...
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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