Mediation of Long Range Charge Transfer by Kondo Bound States
Strongly Correlated Electrons
2007-05-23 v3 Soft Condensed Matter
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, 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.
Keywords
Cite
@article{arxiv.cond-mat/0009018,
title = {Mediation of Long Range Charge Transfer by Kondo Bound States},
author = {R. G. Endres and D. L. Cox and R. R. P. Singh and S. K. Pati},
journal= {arXiv preprint arXiv:cond-mat/0009018},
year = {2007}
}
Comments
Revised content (broadened scope, vibrations added), submitted to Phys Rev Lett, added author