Photon-assisted transport through a quantum dot coupled to superconductors

Photon-assisted electron transport for resonant tunneling has been investigated by using a current formula developed based on the nonequilibrium Green’s function technique. We have studied the external frequency dependence as well as the energy level position dependence for the resonant ac tunneling...

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Bibliographic Details
Published in:Superlattices and microstructures 1999-12, Vol.26 (6), p.405-412
Main Authors: Cho, Sam Young, Kang, Kicheon, Ryu, Chang-Mo, Kim, Chul Koo
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures
Electronic transport in interface structures
Exact sciences and technology
Physics
Tunneling
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Summary:Photon-assisted electron transport for resonant tunneling has been investigated by using a current formula developed based on the nonequilibrium Green’s function technique. We have studied the external frequency dependence as well as the energy level position dependence for the resonant ac tunneling through the quantum dot coupled to two superconducting reservoirs.
ISSN:0749-6036
1096-3677
DOI:10.1006/spmi.1999.0789