Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 16458-16461 |
| Seitenumfang | 4 |
| Fachzeitschrift | Physical Review B - Condensed Matter and Materials Physics |
| Jahrgang | 53 |
| Ausgabenummer | 24 |
| Publikationsstatus | Veröffentlicht - 15 Juni 1996 |
| Extern publiziert | Ja |
Abstract
We have studied the photoluminescence spectra of (Formula presented)(Formula presented)As self-assembled quantum dots in (Formula presented)(Formula presented)As matrices with magnetic fields up to B=40 T. The quantum dot structure is pseudomorphically grown by molecular-beam epitaxy on (100) GaAs substrates. From the analysis of the diamagnetic shift of the magnetoluminescence spectra, we estimate the total lateral electron and hole confinement energy to be 43 meV. The exciton radius is deduced as 5 nm. The exciton binding energy in such a quantum dot system is estimated to be ∼31 meV based on trial wave-function calculations of the actual dot system.
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Elektronische, optische und magnetische Materialien
- Physik und Astronomie (insg.)
- Physik der kondensierten Materie
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in: Physical Review B - Condensed Matter and Materials Physics, Jahrgang 53, Nr. 24, 15.06.1996, S. 16458-16461.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Magnetoluminescence studies oAs self-assembled quantum dots iAs matrices
AU - Wang, P.
AU - Merz, J.
AU - Fafard, S.
AU - Leon, R.
AU - Leonard, D.
AU - Medeiros-Ribeiro, G.
AU - Oestreich, Michael
AU - Petroff, P.
AU - Uchida, K.
AU - Miura, N.
AU - Akiyama, H.
AU - Sakaki, H.
PY - 1996/6/15
Y1 - 1996/6/15
N2 - We have studied the photoluminescence spectra of (Formula presented)(Formula presented)As self-assembled quantum dots in (Formula presented)(Formula presented)As matrices with magnetic fields up to B=40 T. The quantum dot structure is pseudomorphically grown by molecular-beam epitaxy on (100) GaAs substrates. From the analysis of the diamagnetic shift of the magnetoluminescence spectra, we estimate the total lateral electron and hole confinement energy to be 43 meV. The exciton radius is deduced as 5 nm. The exciton binding energy in such a quantum dot system is estimated to be ∼31 meV based on trial wave-function calculations of the actual dot system.
AB - We have studied the photoluminescence spectra of (Formula presented)(Formula presented)As self-assembled quantum dots in (Formula presented)(Formula presented)As matrices with magnetic fields up to B=40 T. The quantum dot structure is pseudomorphically grown by molecular-beam epitaxy on (100) GaAs substrates. From the analysis of the diamagnetic shift of the magnetoluminescence spectra, we estimate the total lateral electron and hole confinement energy to be 43 meV. The exciton radius is deduced as 5 nm. The exciton binding energy in such a quantum dot system is estimated to be ∼31 meV based on trial wave-function calculations of the actual dot system.
UR - http://www.scopus.com/inward/record.url?scp=0000655946&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.53.16458
DO - 10.1103/PhysRevB.53.16458
M3 - Article
AN - SCOPUS:0000655946
VL - 53
SP - 16458
EP - 16461
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
SN - 1098-0121
IS - 24
ER -