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 |
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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 |
Externally published | Yes |
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