Transport Through a Single-Molecule Transistor: Master-Equation Approach

• Authors: A. Donabidowicz-Kolkowska , C. Timm
• Languages of publication: EN

Abstracts

EN

In the present work we employ the master-equation approach to describe the transport through a molecule located in the central region between two external electrodes. In contrast to the transport through a quantum dot, electron-phonon coupling should be taken into account for tunnelling through a molecule. The coupling results in the appearance of additional effects such as vibrational sidebands or, for the case of strong coupling, a suppression of the current at low bias voltage (Franck-Condon blockade). In contrast to previous studies, the transport properties are described by the density matrix calculated explicitly with diagonal and off-diagonal elements. The observed phenomena are discussed and compared to previous studies.

Keywords

EN

73.23.Hk; 73.63.-b; 81.65.+h

Discipline

• 73.63.-b: Electronic transport in nanoscale materials and structures(see also 73.23.-b Electronic transport in mesoscopic systems)
• 73.23.Hk: Coulomb blockade; single-electron tunneling

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2012
• Volume: 121
• Issue: 4
• Pages: 730-732

Dates

published

2012-04

Contributors

author

A. Donabidowicz-Kolkowska

• Institut für Theoretische Physik, Technische Universität Dresden, Dresden, Germany

author

C. Timm

• Institut für Theoretische Physik, Technische Universität Dresden, Dresden, Germany

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Identifiers

DOI

10.12693/APhysPolA.121.730