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Titolo:
MAGNETOLUMINESCENCE STUDIES OF INYAL1-YAS SELF-ASSEMBLED QUANTUM DOTSIN ALXGA1-XAS MATRICES
Autore:
WANG PD; MERZ JL; FAFARD S; LEON R; LEONARD D; MEDEIROSRIBEIRO G; OESTREICH M; PETROFF PM; UCHIDA K; MIURA N; AKIYAMA H; SAKAKI H;
Indirizzi:
UNIV NOTRE DAME,DEPT ELECT ENGN NOTRE DAME IN 46556 UNIV CALIF SANTA BARBARA,DEPT MAT,CTR QUANTIZED ELECT STRUCT SANTA BARBARA CA 93106 UNIV CALIF SANTA BARBARA,DEPT ELECT & COMP ENGN SANTA BARBARA CA 93106 UNIV TOKYO,INST SOLID STATE PHYS,MINATO KU TOKYO 106 JAPAN UNIV TOKYO,ADV SCI & TECHNOL RES CTR,MEGURO KU TOKYO JAPAN RES DEV CORP JAPAN,QUANTUM TRANSIT PROJECT,MEGURO KU TOKYO JAPAN
Titolo Testata:
Physical review. B, Condensed matter
fascicolo: 24, volume: 53, anno: 1996,
pagine: 16458 - 16461
SICI:
0163-1829(1996)53:24<16458:MSOISQ>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
VISIBLE LUMINESCENCE; ORGANIZED GROWTH; MAGNETIC-FIELDS; BINDING-ENERGY; GAAS; EXCITONS; PHOTOLUMINESCENCE; ENSEMBLES; ISLANDS; INGAAS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
23
Recensione:
Indirizzi per estratti:
Citazione:
P.D. Wang et al., "MAGNETOLUMINESCENCE STUDIES OF INYAL1-YAS SELF-ASSEMBLED QUANTUM DOTSIN ALXGA1-XAS MATRICES", Physical review. B, Condensed matter, 53(24), 1996, pp. 16458-16461

Abstract

We have studied the photoluminescence spectra of InyAl1-yAs self-assembled quantum dots in AlxGa1-xAs 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 similar to 31 meV based on trialwave-function calculations of the actual dot system.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/11/20 alle ore 06:35:44