Instituto de Ciencia de Materiales de Madrid | |||||
Condensed Matter Theory | |||||
Sigmund Kohler | home | cv | research | publications |
Rectification of laser-induced electronic transport through moleculesJörg Lehmann, Sigmund Kohler, Peter Hänggi, and Abraham NitzanJ. Chem. Phys. 118, 3283 (2003) We study the influence of laser radiation on the electron transport through a molecular wire weakly coupled to two leads. In the absence of a generalized parity symmetry, the molecule rectifies the laser induced current, resulting in directed electron transport without any applied voltage. We consider two generic ways of dynamical symmetry breaking: mixing of different harmonics of the laser field and molecules consisting of asymmetric groups. For the evaluation of the nonlinear current, a numerically efficient formalism is derived which is based upon the Floquet solutions of the driven molecule. This permits a treatment in the non-adiabatic regime and beyond linear response. arXiv:cond-mat/0208404 |
[ICMM-CSIC]
[Condensed Matter Theory]
last modified: 7.9.2024 by
Sigmund Kohler