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Mediation of Long Range Charge Transfer by Kondo Bound States

R. G. Endres·D. L. Cox·R. R. P. Singh·S. K. Pati
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Abstract

We present a theory of non-equilibrium long range charge transfer between donor and acceptor centers in a model polymer mediated by magnetic exciton (Kondo) bound states. Our model produces electron tunneling lengths easily exceeding 10$Å$, as observed recently in DNA and organic charge transfer systems. This long ranged tunneling is effective for weak to intermediate donor-bridge coupling, and is enhanced both by weak to intermediate strength Coulomb hole-electron attraction (through the orthogonality catastrophe) and by coupling to local vibrational modes.

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R. G. Endres, D. L. Cox, R. R. P. Singh, S. K. Pati. 2002-01-16. Mediation of Long Range Charge Transfer by Kondo Bound States. https://arxiv.org/abs/cond-mat/0009018

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