Nonequilibrium charge-Kondo transport through negative-U molecules

Details Nonequilibrium charge-Kondo transport through negative-U molecules Nonequilibrium charge-Kondo transport through negative-U molecules

2006-10-26

arxiv.org/abs/cond-mat/0610746v1

Phys. Rev. B 75, 195402 (2007)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

11 pages, 5 figures

Scientific paper

10.1103/PhysRevB.75.195402

Low-temperature transport through molecules with effectively negative charging energy U exhibits a charge-Kondo effect. We explore this regime analytically by establishing an exact mapping between the negative-U and the positive-U Anderson models, which is suitable for the description of nonequilibrium transport. We employ this mapping to demonstrate the intimate relation between nonequilibrium tranport in the spin-Kondo and charge-Kondo regimes, and derive analytical expressions for the nonlinear current-voltage chracteristics as well as the shot noise in the latter regime. Applying the mapping in the opposite direction, we elucidate the finding of super-Poissonian noise in the positive-U Anderson model at high temperatures, by relating the correlations between spin flips to pair-tunneling processes at negative U.

Affiliated with

Also associated with

No associations

Rating

Nonequilibrium charge-Kondo transport through negative-U molecules does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Nonequilibrium charge-Kondo transport through negative-U molecules, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nonequilibrium charge-Kondo transport through negative-U molecules will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-114136