Theoretical Aspects of Conducting Polymers: Electronic Structure and Defect States |
From inside the book
Results 1-3 of 12
Page 19
... respect to bond alternation . The procedure for determining the distorted ground state has been described many times ( e.g. Longuet - Higgins and Salem 1959 Su et al . 1980 ) . · Inserting the Ansatz r r Fn = Fo + ( -1 ) " y into the π ...
... respect to bond alternation . The procedure for determining the distorted ground state has been described many times ( e.g. Longuet - Higgins and Salem 1959 Su et al . 1980 ) . · Inserting the Ansatz r r Fn = Fo + ( -1 ) " y into the π ...
Page 34
... respect to u ( or v1 ) for fixed △ reproduces the BdG equations provided that dɛ / ŝu δε with respect to variations of u or v uv = 0 . Therefore ε is stationary and we find , taking into account the normalization condition ( 39 ) ...
... respect to u ( or v1 ) for fixed △ reproduces the BdG equations provided that dɛ / ŝu δε with respect to variations of u or v uv = 0 . Therefore ε is stationary and we find , taking into account the normalization condition ( 39 ) ...
Page 60
... respect to their location and thus can move without hindrance . Impurities and other types of disorder will tend to pin the defects . Lattice discrete- ness induces a small periodic potential with an amplitude of the order of 20K ( Su ...
... respect to their location and thus can move without hindrance . Impurities and other types of disorder will tend to pin the defects . Lattice discrete- ness induces a small periodic potential with an amplitude of the order of 20K ( Su ...
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