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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
; | Date: |
1 Sep 2000 | Subject: | Strongly Correlated Electrons; Soft Condensed Matter | cond-mat.str-el cond-mat.soft | Affiliation: | U.C. Davis), S.K. Pati (JNCASR, Bangalore | 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$AA$, 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. | Source: | arXiv, cond-mat/0009018 | Services: | Forum | Review | PDF | Favorites |
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