Distinctive features of diffusion-controlled radiation defect recombination in stoichiometric magnesium aluminate spinel single crystals and transparent polycrystalline ceramics

MgAl(2)O(4) spinel is important optical material for harsh radiation environment and other important applications. The kinetics of thermal annealing of the basic electron (F, F(+)) and hole (V) centers in stoichiometric MgAl(2)O(4) spinel irradiated by fast neutrons and protons is analyzed in terms...

Descripción completa

Detalles Bibliográficos
Autores principales: Lushchik, A., Feldbach, E., Kotomin, E. A., Kudryavtseva, I., Kuzovkov, V. N., Popov, A. I., Seeman, V., Shablonin, E.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7210938/
https://www.ncbi.nlm.nih.gov/pubmed/32385421
http://dx.doi.org/10.1038/s41598-020-64778-8
_version_ 1783531361658732544
author Lushchik, A.
Feldbach, E.
Kotomin, E. A.
Kudryavtseva, I.
Kuzovkov, V. N.
Popov, A. I.
Seeman, V.
Shablonin, E.
author_facet Lushchik, A.
Feldbach, E.
Kotomin, E. A.
Kudryavtseva, I.
Kuzovkov, V. N.
Popov, A. I.
Seeman, V.
Shablonin, E.
author_sort Lushchik, A.
collection PubMed
description MgAl(2)O(4) spinel is important optical material for harsh radiation environment and other important applications. The kinetics of thermal annealing of the basic electron (F, F(+)) and hole (V) centers in stoichiometric MgAl(2)O(4) spinel irradiated by fast neutrons and protons is analyzed in terms of diffusion-controlled bimolecular reactions. Properties of MgAl(2)O(4) single crystals and optical polycrystalline ceramics are compared. It is demonstrated that both transparent ceramics and single crystals, as well as different types of irradiation show qualitatively similar kinetics, but the effective migration energy E(a) and pre-exponent D(0) are strongly correlated. Such correlation is discussed in terms of the so-called Meyer-Neldel rule known in chemical kinetics of condensed matter. The results for the irradiated spinel are compared with those for sapphire, MgO and other radiation-resistant materials.
format Online
Article
Text
id pubmed-7210938
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-72109382020-05-15 Distinctive features of diffusion-controlled radiation defect recombination in stoichiometric magnesium aluminate spinel single crystals and transparent polycrystalline ceramics Lushchik, A. Feldbach, E. Kotomin, E. A. Kudryavtseva, I. Kuzovkov, V. N. Popov, A. I. Seeman, V. Shablonin, E. Sci Rep Article MgAl(2)O(4) spinel is important optical material for harsh radiation environment and other important applications. The kinetics of thermal annealing of the basic electron (F, F(+)) and hole (V) centers in stoichiometric MgAl(2)O(4) spinel irradiated by fast neutrons and protons is analyzed in terms of diffusion-controlled bimolecular reactions. Properties of MgAl(2)O(4) single crystals and optical polycrystalline ceramics are compared. It is demonstrated that both transparent ceramics and single crystals, as well as different types of irradiation show qualitatively similar kinetics, but the effective migration energy E(a) and pre-exponent D(0) are strongly correlated. Such correlation is discussed in terms of the so-called Meyer-Neldel rule known in chemical kinetics of condensed matter. The results for the irradiated spinel are compared with those for sapphire, MgO and other radiation-resistant materials. Nature Publishing Group UK 2020-05-08 /pmc/articles/PMC7210938/ /pubmed/32385421 http://dx.doi.org/10.1038/s41598-020-64778-8 Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Lushchik, A.
Feldbach, E.
Kotomin, E. A.
Kudryavtseva, I.
Kuzovkov, V. N.
Popov, A. I.
Seeman, V.
Shablonin, E.
Distinctive features of diffusion-controlled radiation defect recombination in stoichiometric magnesium aluminate spinel single crystals and transparent polycrystalline ceramics
title Distinctive features of diffusion-controlled radiation defect recombination in stoichiometric magnesium aluminate spinel single crystals and transparent polycrystalline ceramics
title_full Distinctive features of diffusion-controlled radiation defect recombination in stoichiometric magnesium aluminate spinel single crystals and transparent polycrystalline ceramics
title_fullStr Distinctive features of diffusion-controlled radiation defect recombination in stoichiometric magnesium aluminate spinel single crystals and transparent polycrystalline ceramics
title_full_unstemmed Distinctive features of diffusion-controlled radiation defect recombination in stoichiometric magnesium aluminate spinel single crystals and transparent polycrystalline ceramics
title_short Distinctive features of diffusion-controlled radiation defect recombination in stoichiometric magnesium aluminate spinel single crystals and transparent polycrystalline ceramics
title_sort distinctive features of diffusion-controlled radiation defect recombination in stoichiometric magnesium aluminate spinel single crystals and transparent polycrystalline ceramics
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7210938/
https://www.ncbi.nlm.nih.gov/pubmed/32385421
http://dx.doi.org/10.1038/s41598-020-64778-8
work_keys_str_mv AT lushchika distinctivefeaturesofdiffusioncontrolledradiationdefectrecombinationinstoichiometricmagnesiumaluminatespinelsinglecrystalsandtransparentpolycrystallineceramics
AT feldbache distinctivefeaturesofdiffusioncontrolledradiationdefectrecombinationinstoichiometricmagnesiumaluminatespinelsinglecrystalsandtransparentpolycrystallineceramics
AT kotominea distinctivefeaturesofdiffusioncontrolledradiationdefectrecombinationinstoichiometricmagnesiumaluminatespinelsinglecrystalsandtransparentpolycrystallineceramics
AT kudryavtsevai distinctivefeaturesofdiffusioncontrolledradiationdefectrecombinationinstoichiometricmagnesiumaluminatespinelsinglecrystalsandtransparentpolycrystallineceramics
AT kuzovkovvn distinctivefeaturesofdiffusioncontrolledradiationdefectrecombinationinstoichiometricmagnesiumaluminatespinelsinglecrystalsandtransparentpolycrystallineceramics
AT popovai distinctivefeaturesofdiffusioncontrolledradiationdefectrecombinationinstoichiometricmagnesiumaluminatespinelsinglecrystalsandtransparentpolycrystallineceramics
AT seemanv distinctivefeaturesofdiffusioncontrolledradiationdefectrecombinationinstoichiometricmagnesiumaluminatespinelsinglecrystalsandtransparentpolycrystallineceramics
AT shablonine distinctivefeaturesofdiffusioncontrolledradiationdefectrecombinationinstoichiometricmagnesiumaluminatespinelsinglecrystalsandtransparentpolycrystallineceramics

Ejemplares similares