Theoretical Aspects of Conducting Polymers: Electronic Structure and Defect States |
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Page 38
... gap equation ( 46 ) the asymptotic behaviour D ( g ) ~ Thve ( en ये + πην . यै ) which is identical to the form ... gap equations into agreement ) . We conclude that ( 52 ) ( 53 ) ( 54 ) for weak coupling ( i.e. >> a ) the continuum 38 -
... gap equation ( 46 ) the asymptotic behaviour D ( g ) ~ Thve ( en ये + πην . यै ) which is identical to the form ... gap equations into agreement ) . We conclude that ( 52 ) ( 53 ) ( 54 ) for weak coupling ( i.e. >> a ) the continuum 38 -
Page 52
... equation ( 43 ) is changed due to the modification of the elastic energy ( A has to be replaced by A - = △△ in Eq . ( 40 ) ) , i e yielding A ( x ) = A - πην λ Σ ( u * V ν ν * u ) . VS Using the same procedure as in section 3.3 the gap ...
... equation ( 43 ) is changed due to the modification of the elastic energy ( A has to be replaced by A - = △△ in Eq . ( 40 ) ) , i e yielding A ( x ) = A - πην λ Σ ( u * V ν ν * u ) . VS Using the same procedure as in section 3.3 the gap ...
Page 92
... equation is fulfilled . valence band yields a contribution The filled A -π Σ * = Δ dk ks -A -ε sech [ к ( x - x ) ] sech ( x + x ) ] dk ( B9 ) 2 - A Adding the states in the gap ( with n electrons in the levels ± ) , using the gap equation ...
... equation is fulfilled . valence band yields a contribution The filled A -π Σ * = Δ dk ks -A -ε sech [ к ( x - x ) ] sech ( x + x ) ] dk ( B9 ) 2 - A Adding the states in the gap ( with n electrons in the levels ± ) , using the gap equation ...
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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