Theoretical Aspects of Conducting Polymers: Electronic Structure and Defect States |
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Page 15
Electronic Structure and Defect States Dionys Baeriswyl. This yields a reduction of the force constant by about 30 ... yields the ratio a / K≈ 0.1 Å . On the other hand the force constant ( 16 ) associated with the fully symmetric ...
Electronic Structure and Defect States Dionys Baeriswyl. This yields a reduction of the force constant by about 30 ... yields the ratio a / K≈ 0.1 Å . On the other hand the force constant ( 16 ) associated with the fully symmetric ...
Page 33
... yields duv ν = εν -invp dx + = av V ihvp ax + Au , • An alternative way is to insert the expansion ( 36 ) into Eq . ( 35 ) and to require the resulting expression to be identical to Eq . ( 37 ) . This yields , in addition to the BdG ...
... yields duv ν = εν -invp dx + = av V ihvp ax + Au , • An alternative way is to insert the expansion ( 36 ) into Eq . ( 35 ) and to require the resulting expression to be identical to Eq . ( 37 ) . This yields , in addition to the BdG ...
Page 39
... yields a very good representation of the discrete model , both for the ground state and for fluctuations with | ga | << 1 . In order to get the spectrum we have to add the kinetic energy of the lattice which , if written in terms of ...
... yields a very good representation of the discrete model , both for the ground state and for fluctuations with | ga | << 1 . In order to get the spectrum we have to add the kinetic energy of the lattice which , if written in terms of ...
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