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Theoretical study of inelastic current in molecularnano-junction excited by infrared field

Zhang Yuan Wang Lu-Xia

Theoretical study of inelastic current in molecularnano-junction excited by infrared field

Zhang Yuan, Wang Lu-Xia
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  • Received Date:  01 July 2010
  • Accepted Date:  26 July 2010
  • Published Online:  15 April 2011

Theoretical study of inelastic current in molecularnano-junction excited by infrared field

  • 1. Department of Physics, School of Mathematics and Physics, University of Science and Technology of Beijing, Beijing 100083, China

Abstract: Molecular nano-junction is modeled by 'metal/single molecule/metal’ structure. With the generalized master equation method, the inelastic current induced by the sequential charge transmission through the junction is studied under the excitation of infrared fields in the case of weak lead-molecule coupling.The interaction between infrared field and molecule is described with the models of exponential coupling, square coupling, and linear coupling respectively. In the excitation of varieties of infrared fields, the inelastic current-voltage characteristics and the effects of intramolecular vibrational energy redistribution are discussed.

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