Details
| Original language | English |
|---|---|
| Article number | 013126 |
| Journal | Applied physics letters |
| Volume | 92 |
| Issue number | 1 |
| Publication status | Published - 16 Jan 2008 |
Abstract
We demonstrate the tunability of a GaAsAlGaAs quantum ring showing coherent Aharonov-Bohm oscillations up to a gate voltage regime where the ring splits into three quantum dots. This is explained based on the structure's special confinement potential. We characterized the dots by analyzing the corresponding sets of Coulomb blockade lines. Additionally, the spatial configuration of the dots was confirmed by charge measurements using an adjacent quantum point contact.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physics and Astronomy (miscellaneous)
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In: Applied physics letters, Vol. 92, No. 1, 013126, 16.01.2008.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Quantum dots formed in a GaAsAlGaAs quantum ring
AU - Mühle, A.
AU - Wegscheider, W.
AU - Haug, R. J.
N1 - Funding information: We acknowledge financial support by BMBF via nanoQUIT.
PY - 2008/1/16
Y1 - 2008/1/16
N2 - We demonstrate the tunability of a GaAsAlGaAs quantum ring showing coherent Aharonov-Bohm oscillations up to a gate voltage regime where the ring splits into three quantum dots. This is explained based on the structure's special confinement potential. We characterized the dots by analyzing the corresponding sets of Coulomb blockade lines. Additionally, the spatial configuration of the dots was confirmed by charge measurements using an adjacent quantum point contact.
AB - We demonstrate the tunability of a GaAsAlGaAs quantum ring showing coherent Aharonov-Bohm oscillations up to a gate voltage regime where the ring splits into three quantum dots. This is explained based on the structure's special confinement potential. We characterized the dots by analyzing the corresponding sets of Coulomb blockade lines. Additionally, the spatial configuration of the dots was confirmed by charge measurements using an adjacent quantum point contact.
UR - http://www.scopus.com/inward/record.url?scp=38049045482&partnerID=8YFLogxK
U2 - 10.1063/1.2833694
DO - 10.1063/1.2833694
M3 - Article
AN - SCOPUS:38049045482
VL - 92
JO - Applied physics letters
JF - Applied physics letters
SN - 0003-6951
IS - 1
M1 - 013126
ER -