Theoretical Aspects of Conducting Polymers: Electronic Structure and Defect States |
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Page 8
... numbered chain with one electron per site this corresponds to full electron- hole symmetry . In the case of an odd - numbered chain ( with free ends ) there is necessarily a level at energy zero . 2.2 Bond order It follows immediately ...
... numbered chain with one electron per site this corresponds to full electron- hole symmetry . In the case of an odd - numbered chain ( with free ends ) there is necessarily a level at energy zero . 2.2 Bond order It follows immediately ...
Page 42
... odd - numbered chains . An odd - numbered chain with strong double bonds at the ends ( or one with free boundary conditions , cf. Su 1980 ) contains necessarily a domain - wall in the inner part . The topological constraints ( the number ...
... odd - numbered chains . An odd - numbered chain with strong double bonds at the ends ( or one with free boundary conditions , cf. Su 1980 ) contains necessarily a domain - wall in the inner part . The topological constraints ( the number ...
Page 48
... odd - numbered chain with a single kink it follows that the cut - off A ' has to be chosen such that one electron is removed from the valence band . Using Eq . ( 63 ) A ' is related to A by - LA ' — $ ( A ' ) = LA - π / 2 . With ( A ...
... odd - numbered chain with a single kink it follows that the cut - off A ' has to be chosen such that one electron is removed from the valence band . Using Eq . ( 63 ) A ' is related to A by - LA ' — $ ( A ' ) = LA - π / 2 . With ( A ...
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