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Energy-dependent tunneling from few-electron dynamic quantum dots.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Astley, Michael R. Kataoka, M. Ford, Christopher J. B. Barnes, Crispin H. W. Anderson, David E. Jones, G. A. C. Farrer, Ian Ritchie, David A. Pepper, Michael Sean |
| Copyright Year | 2007 |
| Abstract | We measure the electron escape rate from surface-acoustic-wave dynamic quantum dots (QDs) through a tunnel barrier. Rate equations are used to extract the tunneling rates, which change by an order of magnitude with tunnel-barrier-gate voltage. We find that the tunneling rates depend on the number of electrons in each dynamic QD because of Coulomb energy. By comparing this dependence to a saddle-point-potential model, the addition energies of the second and third electron in each dynamic QD are estimated. The scale ( approximately a few meV) is comparable to those in static QDs as expected. |
| Starting Page | 156802 |
| Ending Page | 156802 |
| Page Count | 1 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://discovery.ucl.ac.uk/1311599/1/1311599.pdf |
| PubMed reference number | 17995201v1 |
| Volume Number | 99 |
| Issue Number | 15 |
| Journal | Physical review letters |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Electrons Energy, Physics Quantum Dots voltage |
| Content Type | Text |
| Resource Type | Article |
