Structural properties of GaAsN/GaAs quantum wells studied at the atomic scale by cross-sectional scanning tunnelling microscopy

Ulloa Herrero, José María and Koenraad, P.M. and Hopkinson, M. (2008). Structural properties of GaAsN/GaAs quantum wells studied at the atomic scale by cross-sectional scanning tunnelling microscopy. "Applied Physics Letters", v. 93 (n. 8); pp.. ISSN 0003-6951. https://doi.org/10.1063/1.2968213.

Description

Title: Structural properties of GaAsN/GaAs quantum wells studied at the atomic scale by cross-sectional scanning tunnelling microscopy
Author/s:
  • Ulloa Herrero, José María
  • Koenraad, P.M.
  • Hopkinson, M.
Item Type: Article
Título de Revista/Publicación: Applied Physics Letters
Date: August 2008
ISSN: 0003-6951
Volume: 93
Subjects:
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Aerotecnia [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (320kB) | Preview

Abstract

The nitrogen distribution in GaAsNGaAs quantum wells _QWs_ grown by molecular beam epitaxy is studied on the atomic scale by cross-sectional scanning tunneling microscopy. No nitrogen clustering is observed in the range of N contents studied _between 1.0% and 2.5%, as measured by counting the individual N atoms inside the QW_. Nevertheless, the upper interface roughness increases with the amount of N. A residual N concentration in the GaAs barriers is found, which strongly increases with the amount of N in the QW.

More information

Item ID: 2717
DC Identifier: http://oa.upm.es/2717/
OAI Identifier: oai:oa.upm.es:2717
DOI: 10.1063/1.2968213
Official URL: http://apl.aip.org/applab/v93/i8
Deposited by: Memoria Investigacion
Deposited on: 06 Apr 2010 08:23
Last Modified: 12 Feb 2015 13:59
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM