Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2009-11-02
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
5 pages, 4 figures
Scientific paper
Influence of forced mechanical vibrations of a suspended single-electron transistor on electron tunneling through the quantum dot limited by the Coulomb blockade is investigated. It is shown that mechanical oscillations of the quantum dot lead to the Coulomb blockade breakdown, shown in sharp resonant peaks in the transistor conductance dependence on the excitation frequency at values corresponding to the mechanical oscillations eigen modes. Physical mechanism of the observed effect is considered. It is presumably connected with oscillations of the mutual electrical capacitances between the quantum dot and surrounding electrodes.
Bakarov A. K.
Budantsev M. V.
Plotnikov A. E.
Pogosov A. G.
Shevyrin A. A.
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