Electronic Properties of Lattice Solutions for the Continuum Model of Conducting Polymers
The continuum version  of the Su-Schrieffer-Heeger model  may be generalized to include an external bond  and/or site dimerization  in order to describe the physical properties of non-degenerate ground state and/or diatomic polymers. We have derived the selfconsistent Bloch eigenfunctions and the ground state energy of the soliton and bipolaron lattice solutions for these models to investigate the thermodynamic stability and to calculate the wave number dependent electronic dielectric function ε(q,ω) in random phase approximation. After Kramers-Kronig transformation the loss function and the plasmon dispersion were determined and compared with results of electron energy loss experiments .
KeywordsGround State Energy Random Phase Approximation Bloch Function Polaron Band Soliton Lattice
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