Conjugated Conducting PolymersHelmut G. Kiess, Dionys Baeriswyl |
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Page 152
... frequency dependence σ proportional to ws with an exponent of the order of 0.8 . The above - mentioned formula considers only electron hops between pairs of sites and is therefore unable to describe correctly the ac conductivity at low ...
... frequency dependence σ proportional to ws with an exponent of the order of 0.8 . The above - mentioned formula considers only electron hops between pairs of sites and is therefore unable to describe correctly the ac conductivity at low ...
Page 186
... frequency is called the anti - Stokes component . Only lattice vibrations having certain types of symmetry are Raman ... frequency w , is annihilated , a scattered photon of frequency ∞ , is created and in the case of a Stokes component ...
... frequency is called the anti - Stokes component . Only lattice vibrations having certain types of symmetry are Raman ... frequency w , is annihilated , a scattered photon of frequency ∞ , is created and in the case of a Stokes component ...
Page 221
... frequency @ near the Larmor frequency w1 to a coil or cavity . In the standard CW ( continuous wave ) technique , the magnetic field Bo is swept through the resonance in either a rapid passage , which yields the absorption signal ...
... frequency @ near the Larmor frequency w1 to a coil or cavity . In the standard CW ( continuous wave ) technique , the magnetic field Bo is swept through the resonance in either a rapid passage , which yields the absorption signal ...
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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