Theoretical Aspects of Conducting Polymers: Electronic Structure and Defect States |
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Page 4
... model is presented . Both the properties of the homogeneous ground state and the spectrum of small amplitude ... continuum model . Furthermore some difficulties with the soliton concept and the interpretation of experiments are mentioned 4-
... model is presented . Both the properties of the homogeneous ground state and the spectrum of small amplitude ... continuum model . Furthermore some difficulties with the soliton concept and the interpretation of experiments are mentioned 4-
Page 45
... continuum model . Since this is an odd function , i.e. △ ( -L / 2 ) = -A ( L / 2 ) , we choose , in agreement with Eqs . ( 32 ) and ( 33 ) , the following boundary conditions for the wavefunctions u ( L / 2 ) = -iu ( -1/2 ) v ( L / 2 ) ...
... continuum model . Since this is an odd function , i.e. △ ( -L / 2 ) = -A ( L / 2 ) , we choose , in agreement with Eqs . ( 32 ) and ( 33 ) , the following boundary conditions for the wavefunctions u ( L / 2 ) = -iu ( -1/2 ) v ( L / 2 ) ...
Page 50
... continuum model a kink can move high mobility . freely due to the translational symmetry . This does not remain true in the discrete model where a moving defect has to overcome a small energy barrier . This pinning energy due to lattice ...
... continuum model a kink can move high mobility . freely due to the translational symmetry . This does not remain true in the discrete model where a moving defect has to overcome a small energy barrier . This pinning energy due to lattice ...
Common terms and phrases
A.J. Heeger absorption amplitude approximation associated assume Baeriswyl band becomes Bishop bond alternation bond length bond order boundary calculations Campbell chain changes charge conducting configuration consider constant continuum limit correlation corresponds coupling defect density depend described determined dimerization discrete discuss disorder distortion dynamical effects electronic energy equation et al expected experiments extent field fluctuations force function given gives ground Hamiltonian hand Hückel impurity increasing integral interaction interchain coupling involved kink lattice leads Lett levels limit MacDiarmid Mele modes Notice observed obtained optical parameter particular Peierls phase phonon Phys Physics points polaron polyacetylene polymers potential presented produced properties proposed represents respect Rice Schrieffer self-consistency shown single Solid soliton solution strongly structure temperature theory whereas yields