Novel Quantum Interference Effects in Transport through Molecular Radicals

J. P. Bergfield; Gemma Clare Solomon; C. A. Stafford; M. A. Ratner

Novel Quantum Interference Effects in Transport through Molecular Radicals

J. P. Bergfield, Gemma Clare Solomon, C. A. Stafford, M. A. Ratner

Department of Chemistry

48 Citations (Scopus)

Abstract

We investigate electronic transport through molecular radicals and predict a correlation-induced transmission node arising from destructive interference between transport contributions from different charge states of the molecule. This quantum interference effect has no single-particle analog and cannot be described by effective single-particle theories. Large errors in the thermoelectric properties and nonlinear current-voltage response of molecular radical junctions are introduced when the complementary wave and particle aspects of the electron are not properly treated. A method to accurately calculate the low-energy transport through a radical-based junction using an Anderson model is given.

Original language	English
Journal	Nano Letters
Volume	11
Issue number	7
Pages (from-to)	2759-2764
ISSN	1530-6984
Publication status	Published - 13 Jul 2011

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title = "Novel Quantum Interference Effects in Transport through Molecular Radicals",

abstract = "We investigate electronic transport through molecular radicals and predict a correlation-induced transmission node arising from destructive interference between transport contributions from different charge states of the molecule. This quantum interference effect has no single-particle analog and cannot be described by effective single-particle theories. Large errors in the thermoelectric properties and nonlinear current-voltage response of molecular radical junctions are introduced when the complementary wave and particle aspects of the electron are not properly treated. A method to accurately calculate the low-energy transport through a radical-based junction using an Anderson model is given.",

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AU - Solomon, Gemma Clare

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AU - Ratner, M. A.

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N2 - We investigate electronic transport through molecular radicals and predict a correlation-induced transmission node arising from destructive interference between transport contributions from different charge states of the molecule. This quantum interference effect has no single-particle analog and cannot be described by effective single-particle theories. Large errors in the thermoelectric properties and nonlinear current-voltage response of molecular radical junctions are introduced when the complementary wave and particle aspects of the electron are not properly treated. A method to accurately calculate the low-energy transport through a radical-based junction using an Anderson model is given.

AB - We investigate electronic transport through molecular radicals and predict a correlation-induced transmission node arising from destructive interference between transport contributions from different charge states of the molecule. This quantum interference effect has no single-particle analog and cannot be described by effective single-particle theories. Large errors in the thermoelectric properties and nonlinear current-voltage response of molecular radical junctions are introduced when the complementary wave and particle aspects of the electron are not properly treated. A method to accurately calculate the low-energy transport through a radical-based junction using an Anderson model is given.

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VL - 11

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EP - 2764

JO - Nano Letters

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ER -

Novel Quantum Interference Effects in Transport through Molecular Radicals

Abstract

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