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On the application of positron spectroscopy to heteronanostrutures

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Main Authors: Arutyunov, N. Yu, Sekkal, Nadir, Aourag, H.
Other Authors: n_arutyunov@yahoo.com
Format: Article
Language:English
Published: Universiti Malaysia Perlis 2016
Subjects:
Superlattices
Characterization
Positron spectroscopy
Positron-electron annihilation
ACAR
DBAR
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/41307
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spelling my.unimap-413072017-11-21T03:09:01Z On the application of positron spectroscopy to heteronanostrutures Arutyunov, N. Yu Sekkal, Nadir Aourag, H. n_arutyunov@yahoo.com Superlattices Characterization Positron spectroscopy Positron-electron annihilation ACAR DBAR Link to publisher's homepage at http://ijneam.unimap.edu.my/ The band structure calculations have been performed for the defect-free GaAS-AIAs superlattice and the electron-positron momentum density distributions have been computed. The comparison of data of calculations with the experimental ones obtained for GaAs and AIAs contituent materials by measuring the angular correlation of the annihilation radiation (ACAR) demonstrates good agreement. The possibility of a confinement of positron in the super lattice is predicted. The elemental specificity of the atomic environment of positron is shown to determine the electron-positron momentum region this distribution for a confined positron in GaAs-AIAs superlattice. In the high-momentum region this distribution is affected by the positron annihilation on the electrons in the shells of Ga3+ and Al3+ ion cores. The change of the position confined stated to the trapped one is considered as an example for the vacancy-type defects presents in GaAs constituent material. In this connection the non-destructive characterization of the heterostructures and superlattices by means of the positron self-seeking microprobe is shortly discussed. 2016-04-22T07:43:03Z 2016-04-22T07:43:03Z 2013 Article International Journal of Nanoelectronics and Materials, vol.6 (2), 2013, pages 73-86 1985-5761 (Printed) 1997-4434 (Online) http://dspace.unimap.edu.my:80/xmlui/handle/123456789/41307 en Universiti Malaysia Perlis
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Superlattices
Characterization
Positron spectroscopy
Positron-electron annihilation
ACAR
DBAR
spellingShingle Superlattices
Characterization
Positron spectroscopy
Positron-electron annihilation
ACAR
DBAR
Arutyunov, N. Yu
Sekkal, Nadir
Aourag, H.
On the application of positron spectroscopy to heteronanostrutures
description Link to publisher's homepage at http://ijneam.unimap.edu.my/
author2 n_arutyunov@yahoo.com
author_facet n_arutyunov@yahoo.com
Arutyunov, N. Yu
Sekkal, Nadir
Aourag, H.
format Article
author Arutyunov, N. Yu
Sekkal, Nadir
Aourag, H.
author_sort Arutyunov, N. Yu
title On the application of positron spectroscopy to heteronanostrutures
title_short On the application of positron spectroscopy to heteronanostrutures
title_full On the application of positron spectroscopy to heteronanostrutures
title_fullStr On the application of positron spectroscopy to heteronanostrutures
title_full_unstemmed On the application of positron spectroscopy to heteronanostrutures
title_sort on the application of positron spectroscopy to heteronanostrutures
publisher Universiti Malaysia Perlis
publishDate 2016
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/41307
_version_ 1643802793806397440
score 13.214268

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