Semiclassical theory for dissipative tunneling through a molecular wire

Alexander L. Burin; Yuri A. Berlin; Mark A. Ratner

Semiclassical theory for dissipative tunneling through a molecular wire

Alexander L. Burin^*, Yuri A. Berlin, Mark A. Ratner

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

The exact semiclassical wavefunction for a tunneling electron, coupled to the degrees of freedom of the host medium, is constructed. As a specific application, the result is used to calculate the tunneling amplitude for the electron interacting with a single vibrational mode of the medium. In agreement with previous numerical studies, the tunneling rate is enhanced due to the interaction-stimulated decrease of the tunneling barrier. Several tunneling regimes can be distinguished, depending on the relationship of vibrational frequency and tunneling time.

Original language	English (US)
Pages (from-to)	240-247
Number of pages	8
Journal	Annals of the New York Academy of Sciences
Volume	960
State	Published - Jan 1 2002

Keywords

Charge transfer
Dissipative tunneling
Donor-bridge-acceptor systems
Electron-vibrational interactions
Molecular wires
Semiclasssical theory

ASJC Scopus subject areas

Neuroscience(all)
Biochemistry, Genetics and Molecular Biology(all)
History and Philosophy of Science

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keywords = "Charge transfer, Dissipative tunneling, Donor-bridge-acceptor systems, Electron-vibrational interactions, Molecular wires, Semiclasssical theory",

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AU - Ratner, Mark A.

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N2 - The exact semiclassical wavefunction for a tunneling electron, coupled to the degrees of freedom of the host medium, is constructed. As a specific application, the result is used to calculate the tunneling amplitude for the electron interacting with a single vibrational mode of the medium. In agreement with previous numerical studies, the tunneling rate is enhanced due to the interaction-stimulated decrease of the tunneling barrier. Several tunneling regimes can be distinguished, depending on the relationship of vibrational frequency and tunneling time.

AB - The exact semiclassical wavefunction for a tunneling electron, coupled to the degrees of freedom of the host medium, is constructed. As a specific application, the result is used to calculate the tunneling amplitude for the electron interacting with a single vibrational mode of the medium. In agreement with previous numerical studies, the tunneling rate is enhanced due to the interaction-stimulated decrease of the tunneling barrier. Several tunneling regimes can be distinguished, depending on the relationship of vibrational frequency and tunneling time.

KW - Charge transfer

KW - Dissipative tunneling

KW - Donor-bridge-acceptor systems

KW - Electron-vibrational interactions

KW - Molecular wires

KW - Semiclasssical theory

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JF - Annals of the New York Academy of Sciences

SN - 0077-8923

ER -

Semiclassical theory for dissipative tunneling through a molecular wire

Abstract

Keywords

ASJC Scopus subject areas

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