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Coulomb-Modified Fano Resonance in a One-Lead Quantum Dot

Publikation: Forskning - peer reviewTidsskriftartikel

Dokumenter

Anna Ansaba Johnson, C. M. Marcus, Mats Hanson, A. Gossard

We investigate a tunable Fano interferometer consisting of a quantum dot coupled via tunneling to a one-dimensional channel. In addition to Fano resonance, the channel shows strong Coulomb response to the dot, with a single electron modulating channel conductance by factors of up to 100. Where these effects coexist, lineshapes with up to four extrema are found. A model of Coulomb-modified Fano resonance is developed and gives excellent agreement with experiment.
OriginalsprogEngelsk
TidsskriftPhysical Review Letters
Vol/bind93
Tidsskriftsnummer10
ISSN0031-9007
DOI
StatusUdgivet - 22 dec. 2003

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  • cond-mat.mes-hall

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