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Vibrational excitation of a molecule by a resonance current

  • Atoms, Molecules, Optics
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Abstract

Correct expressions are obtained for calculating a tunnel-resonance current through molecules. The participation of molecular vibrations in the resonance charge transfer through a molecule and vibrational excitation of the molecule are determined by the reorganization energy E r of the vibrational system depending on the displacement of the equilibrium position of vibrational modes in passing from the neutral molecule to the resonance state of a molecular ion. The mean excitation energy of the molecule during the propagation of an elementary charge changes from E r at the voltage across electrodes close to the threshold up to 2E r at voltages considerably exceeding the threshold voltage. An expression is obtained for the stationary vibrational temperature of the molecule, which is proportional to the resonance current.

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Authors and Affiliations

  1. Institute of Chemical Physics, Russian Academy of Sciences, Moscow, 119991, Russia

    M. A. Kozhushner

  2. University of South Florida, Tampa, FL, 33620, USA

    I. I. Oleinik

Authors
  1. M. A. Kozhushner
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  2. I. I. Oleinik
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Correspondence to M. A. Kozhushner.

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Original Russian Text © M.A. Kozhushner, I.I. Oleinik, 2012, published in Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2012, Vol. 142, No. 5, pp. 862–872.

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Kozhushner, M.A., Oleinik, I.I. Vibrational excitation of a molecule by a resonance current. J. Exp. Theor. Phys. 115, 759–768 (2012). https://doi.org/10.1134/S1063776112100056

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