Abstract
We study the magnetic (B-) field evolution of single-particle levels in one dot by observing resonant tunnelling (RT) between two weakly coupled vertical quantum dots in series. The B-field dependence of the RT current peaks in the spectrum follows closely that of the states of a circular two dimensional harmonic potential. Several prominent two-level anti-crossing features are revealed. The RT current changes dramatically on passing through the anti-crossing point. This can be assigned to the nature of inter-dot RT though intra-dot level-mixed states.
| Original language | English |
|---|---|
| Pages (from-to) | 174-177 |
| Number of pages | 4 |
| Journal | Physica Status Solidi (C) Current Topics in Solid State Physics |
| Volume | 5 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2008 Jun 30 |
| Event | 15th International Conference on Nonequilibrium Carrier Dynamics in Semiconductors, HCIS15 - Tokyo, Japan Duration: 2007 Jul 23 → 2007 Jul 27 |
ASJC Scopus subject areas
- Condensed Matter Physics
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Cite this
Amana, S., Payette, C., Gupta, J. A., Hatano, T., Ono, K., Kodera, T., Tokura, Y., Austing, D. G., & Tarucha, S. (2008). Two level mixing effects probed by resonant tunnelling through vertically coupled quantum dots. Physica Status Solidi (C) Current Topics in Solid State Physics, 5(1), 174-177. https://doi.org/10.1002/pssc.200776573