Published February 1, 2010 | Version v1
Journal article Metadata-only

Diamagnetic coefficient of excitonic complexes in GaAs/Al0.3Ga0.7As quantum dots

Creators

  • 1. National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044 (Japan)
  • 2. Dipartimento di Fisica, CNISM, Universita of Firenze and European Laboratory for Non-Linear Spectroscopy, Via Sansone 1, 50019 Sesto Fiorentino, Firenze (Italy)

Description

We present an experimental investigation of the magneto optical properties of neutral exciton, neutral biexciton and charged exciton confined in self-assembled GaAs/Al0.3Ga0.7As strain free quantum dots grown by droplet epitaxy. We measured the diamagnetic shift γ for several quantum dots spanning an interval of 200 meV of the exciton emission energy. The dependence of γ on quantum dot size and shape is discussed together with a comparison with Stranski Krastanov and fluctuation induced GaAs quantum dots, as well as with quantum well case.

Availability note (English)

Available from http://dx.doi.org/10.1088/1742-6596/210/1/012012

Additional details

Identifiers

DOI
10.1088/1742-6596/210/1/012012;

Publishing Information

Journal Title
Journal of Physics. Conference Series (Online)
Journal Volume
210
Journal Issue
1
Journal Page Range
[5 p.]
ISSN
1742-6596

Conference

Title
11. international conference on optics of excitons in confined systems
Acronym
OECS11
Dates
7-11 Sep 2009
Place
Madrid (Spain)

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
42041222
Subject category
S77: NANOSCIENCE AND NANOTECHNOLOGY; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ALUMINIUM ARSENIDES; COMPARATIVE EVALUATIONS; DIAMAGNETISM; DROPLETS; EPITAXY; FLUCTUATIONS; GALLIUM ARSENIDES; MAGNETO-OPTICAL EFFECTS; OPTICAL PROPERTIES; QUANTUM DOTS; QUANTUM WELLS; STRAINS
Descriptors DEC
ALUMINIUM COMPOUNDS; ARSENIC COMPOUNDS; ARSENIDES; CRYSTAL GROWTH METHODS; EVALUATION; GALLIUM COMPOUNDS; MAGNETISM; NANOSTRUCTURES; PARTICLES; PHYSICAL PROPERTIES; PNICTIDES; VARIATIONS