Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Spatially resolved STM light emission spectra of cleaved (110) AlGaAs/GaAsheterostructures
Autore:
Tsuruoka, T; Ohizumi, Y; Tanimoto, R; Ushioda, S;
Indirizzi:
Tohoku Univ, Elect Commun Res Inst, Sendai, Miyagi 9808577, Japan Tohoku Univ Sendai Miyagi Japan 9808577 st, Sendai, Miyagi 9808577, Japan Japan Sci & Technol Corp, CREST, Sendai, Miyagi 9808577, Japan Japan Sci &Technol Corp Sendai Miyagi Japan 9808577 iyagi 9808577, Japan
Titolo Testata:
APPLIED SURFACE SCIENCE
, volume: 169, anno: 2001,
pagine: 193 - 197
SICI:
0169-4332(20010115)169:<193:SRSLES>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
SCANNING TUNNELING MICROSCOPE; ELECTRON-TRANSPORT; LUMINESCENCE; GAAS;
Keywords:
scanning tunneling microscope; light emission spectroscopy; heterostructures;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
12
Recensione:
Indirizzi per estratti:
Indirizzo: Tsuruoka, T Tohoku Univ, Elect Commun Res Inst, Sendai, Miyagi 9808577, Japan Tohoku Univ Sendai Miyagi Japan 9808577 Miyagi 9808577, Japan
Citazione:
T. Tsuruoka et al., "Spatially resolved STM light emission spectra of cleaved (110) AlGaAs/GaAsheterostructures", APPL SURF S, 169, 2001, pp. 193-197

Abstract

We have measured the spectra of light emitted from individual single GaAs quantum wells of cleaved (1 1 0) AlGaAs/GaAs heterostructures using the STM(scanning tunneling microscope) tip as a local electron injection source. The cross-sectional STM images of the quantum wells were obtained, and the light emission spectra were measured by locating the STM tip over individual quantum wells of interest. Single emission peaks were observed to shift to the high-energy side with decreasing well width. The peak positions agreewith the calculated transition energies for the corresponding well width. The thermalization length of the injected electron was estimated by observing the change in the emission intensity as the tip is moved at different distances from a given well. (C) 2001 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 13/07/20 alle ore 07:51:25