Volume 47, Number 1, July 1999
|Page(s)||97 - 103|
|Section||Condensed matter: electronic structure, electrical, magnetic and optical properties|
|Published online||01 September 2002|
Accuracy of a mechanical single-electron shuttle
Sektion Physik and Center for NanoScience, Ludwig-Maximilians-Universität München Theresienstr. 37, D-80333 München, Germany
Accepted: 27 April 1999
Motivated by recent experiments, we calculate both the average current and the current fluctuations for a metallic island which oscillates between two symmetric electrodes. Electrons can only tunnel on or off the island when it is close to one of the electrodes. Using a Master equation we investigate the accuracy of such an electron shuttle both analytically and numerically. It is shown that optimum operation is reached when the contact time is much larger than the RC-time.
PACS: 73.23.Hk – Coulomb blockade; single-electron tunnelling
© EDP Sciences, 1999
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