Abstract
The authors have fabricated and measured a lateral Si single electron transistor consisting of a succession of a big island and small quantum dots. The big island gives rise to a small period Coulomb oscillation riding on the large irregular oscillation arising from the small quantum dots. The peaks of the latter shift in the presence of a magnetic field, which is analyzed in the context of field-induced Landau level shift with a soft-wall confinement potential. Furthermore, the current peak was suppressed for fields beyond a threshold value. An explanation based on cyclotron localization at noninteracting Landau levels is presented.
Original language | English |
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Article number | 032106 |
Journal | Applied Physics Letters |
Volume | 90 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2007 |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)