Published November 2004 | Version v1
Journal article Metadata-only

Magneto-photoluminescence study on GaAs/AlGaAs quantum wire superlattices

Creators

  • 1. Northwestern University, Chicago (United States)
  • 2. Seoul National University, Seoul (Korea, Republic of)
  • 3. Hankuk University of Foreign Studies, Kyonggi-do (Korea, Republic of)

Description

A study on magnetic-field-(B)-dependent blue shifts of photoluminescence has been performed on a quantum wire (QWR) superlattice at B ≤ 30 T at LHe temperature. For GaAs/Al0.5Ga0.5As QWR grown by migration enhanced epitaxy on tilted-cut substrate, the effectiveness of 2-D confinement is analyzed by the dimensionality factor RD through the comparison of diamagnetic and Landau shifts. It is significant that the electronic wavefunction penetrates more into the quantum barrier in narrow-wire-width QWR, and the excitonic behavior experiences lateral confinement confirming the presence of 1-D characteristics.

Additional details

Publishing Information

Journal Title
Journal of the Korean Physical Society
Journal Volume
45
Journal Issue
5
Series
15 refs, 4 figs, 1 tab
Journal Page Range
p. 1181-1184
ISSN
0374-4884

INIS

Country of Publication
Korea, Republic of
Country of Input or Organization
Korea, Republic of
INIS RN
42013082
Subject category
S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
ALUMINIUM COMPOUNDS; DIAMAGNETISM; EFFECTIVE MASS; EXCITON MODEL; GALLIUM ARSENIDES; GRAIN GROWTH; MAGNETIC CONFINEMENT; PHOTOLUMINESCENCE; QUANTUM WIRES; SUPERLATTICES; TRANSMISSION ELECTRON MICROSCOPY
Descriptors DEC
ARSENIC COMPOUNDS; ARSENIDES; CONFINEMENT; ELECTRON MICROSCOPY; EMISSION; GALLIUM COMPOUNDS; LUMINESCENCE; MAGNETISM; MASS; MATHEMATICAL MODELS; MICROSCOPY; NANOSTRUCTURES; NUCLEAR MODELS; PHOTON EMISSION; PLASMA CONFINEMENT; PNICTIDES