liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Pyramidal GaAs/AlzGa1-zAs quantum wire/dot systems with controlled heterostructure potential
Laboratory of Physics and Nanostructures, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.
Laboratory of Quantum Optoelectronics, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.
Laboratory of Physics and Nanostructures, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.
Laboratory of Physics and Nanostructures, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.ORCID iD: 0000-0002-4547-6673
Show others and affiliations
2010 (English)In: Phys. Rev. B, Vol. 82, 165315Article in journal (Refereed) Published
Abstract [en]

The structural and optical properties of controlled-heterostructure-potential, low-dimensional GaAs/AlGaAs nanostructures self-formed during organometallic chemical vapor deposition in tetrahedral pyramids etched in (111)B-GaAs substrates, are investigated using electron microscopy, cathodoluminescence, photoluminescence (PL), photon correlation spectroscopy, and theoretical modeling. Quantum wires/dots with AlGaAs cores with growth-controlled dimensions are formed, with a system of well-defined, low-dimensional nanostructure barriers around them. Transitions between carrier states confined in the AlGaAs quantum wires and dots are identified in the PL spectra, with features in good agreement with model calculations. Emission of single-photons and bunched-photon pairs is observed using temporal photon correlation spectroscopy. This self-formed nanostructure system provides new ways for shaping low-dimensional quantum structures and their heterostructure environment.

Place, publisher, year, edition, pages
2010. Vol. 82, 165315
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:liu:diva-118685DOI: 10.1103/PhysRevB.82.165315OAI: oai:DiVA.org:liu-118685DiVA: diva2:816576
Available from: 2015-06-03 Created: 2015-06-03 Last updated: 2015-10-22

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Karlsson, K Fredrik
Condensed Matter Physics

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 19 hits
ReferencesLink to record
Permanent link

Direct link