Semiclassical theory for dissipative tunneling through a molecular wire

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

doi:10.1111/j.1749-6632.2002.tb03038.x

Semiclassical theory for dissipative tunneling through a molecular wire

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

Northwestern University

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

2 Citations (Scopus)

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
Pages (from-to)	240-247
Number of pages	8
Journal	Annals of the New York Academy of Sciences
Volume	960
DOIs	https://doi.org/10.1111/j.1749-6632.2002.tb03038.x
Publication status	Published - 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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AU - Burin, Alexander L.

AU - Berlin, Yuri A.

AU - Ratner, Mark A.

PY - 2002

Y1 - 2002

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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JO - Annals of the New York Academy of Sciences

JF - Annals of the New York Academy of Sciences

SN - 0077-8923

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Semiclassical theory for dissipative tunneling through a molecular wire

Abstract

Keywords

ASJC Scopus subject areas

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