Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 477-481 |
| Seitenumfang | 5 |
| Fachzeitschrift | Physica E: Low-Dimensional Systems and Nanostructures |
| Jahrgang | 26 |
| Ausgabenummer | 1-4 |
| Publikationsstatus | Veröffentlicht - 25 Nov. 2004 |
| Veranstaltung | International Conference on Quantum Dots - Banff, Alberta, Kanada Dauer: 10 Mai 2004 → 13 Mai 2004 |
Abstract
We have analyzed a single-electron transport spectrum of a quantum dot formed in a GaAs/AlGaAs resonant tunneling device. The measured spectrum indicates a strong confining potential and the lack of circular symmetry. We model the quantum dot by applying a rounded parabolic potential and a negatively charged impurity, shifted laterally and vertically from the center of the dot. We analyze the physical conditions behind the optimized parameter values and consider also the structural properties of the corresponding single-electron states as a function of the magnetic field.
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Elektronische, optische und magnetische Materialien
- Physik und Astronomie (insg.)
- Atom- und Molekularphysik sowie Optik
- Physik und Astronomie (insg.)
- Physik der kondensierten Materie
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in: Physica E: Low-Dimensional Systems and Nanostructures, Jahrgang 26, Nr. 1-4, 25.11.2004, S. 477-481.
Publikation: Beitrag in Fachzeitschrift › Konferenzaufsatz in Fachzeitschrift › Forschung › Peer-Review
}
TY - JOUR
T1 - Characterization of deformed quantum dots by modeling single-electron- tunneling experiments
AU - Räsänen, E.
AU - Könemann, J.
AU - Haug, R. J.
AU - Puska, M. J.
AU - Nieminen, R. M.
PY - 2004/11/25
Y1 - 2004/11/25
N2 - We have analyzed a single-electron transport spectrum of a quantum dot formed in a GaAs/AlGaAs resonant tunneling device. The measured spectrum indicates a strong confining potential and the lack of circular symmetry. We model the quantum dot by applying a rounded parabolic potential and a negatively charged impurity, shifted laterally and vertically from the center of the dot. We analyze the physical conditions behind the optimized parameter values and consider also the structural properties of the corresponding single-electron states as a function of the magnetic field.
AB - We have analyzed a single-electron transport spectrum of a quantum dot formed in a GaAs/AlGaAs resonant tunneling device. The measured spectrum indicates a strong confining potential and the lack of circular symmetry. We model the quantum dot by applying a rounded parabolic potential and a negatively charged impurity, shifted laterally and vertically from the center of the dot. We analyze the physical conditions behind the optimized parameter values and consider also the structural properties of the corresponding single-electron states as a function of the magnetic field.
KW - Electron transport
KW - Quantum dots
KW - Single-electron spectrum
UR - http://www.scopus.com/inward/record.url?scp=13444259626&partnerID=8YFLogxK
U2 - 10.1016/j.physe.2004.08.086
DO - 10.1016/j.physe.2004.08.086
M3 - Conference article
AN - SCOPUS:13444259626
VL - 26
SP - 477
EP - 481
JO - Physica E: Low-Dimensional Systems and Nanostructures
JF - Physica E: Low-Dimensional Systems and Nanostructures
SN - 1386-9477
IS - 1-4
T2 - International Conference on Quantum Dots
Y2 - 10 May 2004 through 13 May 2004
ER -