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6 papers · 1 filter
Current induced light emission and light induced current in molecular tunneling junctions
Michael Galperin, Abraham Nitzan
The interaction of metal-molecule-metal junctions with light is considered within a simple generic model. We show, for the first time, that light induced current in unbiased juncti…
Tight binding description of the STM image of molecular chains
Yoel Calev, Hezy Cohen, Gianaurelio Cuniberti +2
A tight binding model for scanning tunneling microscopy images of a molecule adsorbed on a metal surface is described. The model is similar in spirit to that used to analyze conduc…
Quantized charge pumping by surface acoustic waves in ballistic quasi-1D channels
Vyacheslavs Kashcheyevs, Amnon Aharony, Ora Entin-Wohlman
Adiabatic pumping of electrons induced by surface acoustic waves (SAWs) in a ballistic quasi-1D quantum channel is considered using an exactly solvable tight-binding model for non-…
Resonance approximation and charge loading/unloading in adiabatic quantum pumping
Vyacheslavs Kashcheyevs, Amnon Aharony, Ora Entin-Wohlman
Quantum pumping through mesoscopic quantum dots is known to be enhanced by resonant transmission. The pumped charge is close to an integer number of electrons when the pumping cont…
Asymmetric Electron Transmission across Asymmetric Alkanethiol Bilayer Junctions
Michael Galperin, Abraham Nitzan, Slawomir Sek +1
Asymmetric i/V curves with respect to the polarity of the voltage bias were observed in the Hg-Au junctions containing bilayers of alkanethiols of different chain length. Larger cu…
Rectification of laser-induced electronic transport through molecules
Jörg Lehmann, Sigmund Kohler, Peter Hänggi +1
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 molec…