Abstract
The gate bias dependent evolution of the Coulomb oscillations in a silicon-on-insulator nano-wire transistor is reported. Transport data obtained for a wide range of front- and back-gate bias strongly suggest that multiple quantum dots (QDs) with different potential depths are formed in the nano-wire channel. Our data can be clearly interpreted as arising from the turning on or off of one of these QDs as the back-gate bias is varied. Quantitative calculation based on the model of single-electron tunneling through two parallel QDs is in reasonable agreement with the measured data in the back-gate bias range where the third dot is not activated.
Original language | English |
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Pages (from-to) | 245-251 |
Number of pages | 7 |
Journal | Superlattices and Microstructures |
Volume | 34 |
Issue number | 3-6 |
DOIs | |
State | Published - Sep 2003 |
Keywords
- Nano-wire
- Potential fluctuation
- SOI
- Single-electron tunneling