Mediation of Long Range Charge Transfer by Kondo Bound States

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$\AA$, as observed recently in DNA and organic charge transfer s...

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Bibliographic Details
Main Authors Endres, R. G, Cox, D. L, Singh, R. R. P, Pati, S. K
Format Journal Article
LanguageEnglish
Published 01.09.2000
Subjects
Physics - Soft Condensed Matter
Physics - Strongly Correlated Electrons
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Summary: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$\AA$, 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.
DOI:10.48550/arxiv.cond-mat/0009018