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AIP Conference Proceedings / Volume 780

Current and noise suppression in ac‐driven coherent transport

AIP Conf. Proc. 780, pp. 45-50; doi:http://dx.doi.org/10.1063/1.2036695 (6 pages)

NOISE AND FLUCTUATIONS: 18th International Conference on Noise and Fluctuations - ICNF 2005
Date: 19-23 September 2005
Location: Salamanca (Spain)
Sigmund Kohler1, Michael Strass1, Peter Hänggi1, Miguel Rey2, and Fernando Sols3

1Institut für Physik, Universität Augsburg, Universitätsstraße 1, D‐86135 Augsburg, Germany
2Departamento de Física Teórica de la Materia Condensada, Universidad Autónoma de Madrid, E‐28049 Madrid, Spain
3Departamento de Física de Materiales, Universidad Complutense de Madrid, E‐28040, Spain

We investigate the possibility to manipulate for the transport through heterostructures the dc current and its noise properties by an ac gate voltage. For a computation of the noise strength, we map the system to a tight‐binding model for which noise suppression by ac fields has been predicted recently. The quality of this description is tested by comparing the transmission of the tight‐binding system with a transfer‐matrix approach. © 2005 American Institute of Physics

© 2005 American Institute of Physics

KEYWORDS and PACS

Keywords

electron transport theory, noise, electric current, tight-binding calculations

PACS

  • 05.60.Gg

    Quantum transport

  • 05.40.Ca

    Noise

  • 72.70.+m

    Noise processes and phenomena

  • 72.40.+w

    Photoconduction and photovoltaic effects

  • 73.63.-b

    Electronic transport in nanoscale materials and structures

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.2036695

PUBLICATION DATA

ISSN

0094-243X (print)  
1551-7616 (online)

ISBN:

0-7354-0267-1

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics


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