Theoretical Aspects of Conducting Polymers: Electronic Structure and Defect States |
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Page 11
... corresponds to the case of an ideal poly- acetylene chain the k - sum is replaced by an integral over the half ... correspond to parameters which are determined by minimalizing the total energy . Let ř = ( x1 , x2 ' .... IN denote a ...
... corresponds to the case of an ideal poly- acetylene chain the k - sum is replaced by an integral over the half ... correspond to parameters which are determined by minimalizing the total energy . Let ř = ( x1 , x2 ' .... IN denote a ...
Page 30
... corresponds to including more and more Fourier coef- ficients both for the phonons and the electrons . order to avoid unphysical divergences due to an infinite Fermi sea we will have to use a cut - off wavevector A which can be ...
... corresponds to including more and more Fourier coef- ficients both for the phonons and the electrons . order to avoid unphysical divergences due to an infinite Fermi sea we will have to use a cut - off wavevector A which can be ...
Page 56
... corresponds to well - separated + kink - antikink pairs for y = 0 , is strongly modified since the external potential leads to confinement , as illustrated in Fig . 8 for the cis structure . Electroni- cally , we have to distinguish ...
... corresponds to well - separated + kink - antikink pairs for y = 0 , is strongly modified since the external potential leads to confinement , as illustrated in Fig . 8 for the cis structure . Electroni- cally , we have to distinguish ...
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