Influence of an initial chemical state of cation impurities on their diffusion in ionic crystals

S. A. Ghyngazov, T. S. Frangulyan, A. V. Chernyavskii

Research Laboratory for Electronics, Semiconductors and Dielectrics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Depth profiles of magnesium, fluorine and oxygen impurities was examined in the surface layers of alkali-halide crystals using method of secondary ion mass spectrometry. Samples of potassium bromide, coated with a surface film of magnesium fluoride were subjected to isothermal diffusion annealing in air at various times. It is shown that the diffusion of O ions occurs from the ambient atmosphere besides the diffusion of Mg and F ions during annealing of KBr crystals. Accurate estimation of the diffusion coefficients of cationic impurity Mg requires taking into account the possible interaction of this impurity and oxygen. The effect of an intensive electron beam on diffusion of magnesium impurity in crystals of fluoride of lithium is studied.

Original language	English
Title of host publication	2015 International Siberian Conference on Control and Communications, SIBCON 2015 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Print)	9781479971022
DOIs	https://doi.org/10.1109/SIBCON.2015.7147277
Publication status	Published - 1 Jul 2015
Event	2015 International Siberian Conference on Control and Communications, SIBCON 2015 - Omsk, Russian Federation Duration: 21 May 2015 → 23 May 2015

Other

Other	2015 International Siberian Conference on Control and Communications, SIBCON 2015
Country	Russian Federation
City	Omsk
Period	21.5.15 → 23.5.15

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Keywords

alkali-halide crystals
diffusion
secondary ion mass spectrometry

ASJC Scopus subject areas

Computer Networks and Communications
Control and Systems Engineering

Cite this

Ghyngazov, S. A., Frangulyan, T. S., & Chernyavskii, A. V. (2015). Influence of an initial chemical state of cation impurities on their diffusion in ionic crystals. In 2015 International Siberian Conference on Control and Communications, SIBCON 2015 - Proceedings [7147277] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/SIBCON.2015.7147277

Influence of an initial chemical state of cation impurities on their diffusion in ionic crystals. / Ghyngazov, S. A.; Frangulyan, T. S.; Chernyavskii, A. V.

2015 International Siberian Conference on Control and Communications, SIBCON 2015 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2015. 7147277.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Ghyngazov, SA, Frangulyan, TS & Chernyavskii, AV 2015, Influence of an initial chemical state of cation impurities on their diffusion in ionic crystals. in 2015 International Siberian Conference on Control and Communications, SIBCON 2015 - Proceedings., 7147277, Institute of Electrical and Electronics Engineers Inc., 2015 International Siberian Conference on Control and Communications, SIBCON 2015, Omsk, Russian Federation, 21.5.15. https://doi.org/10.1109/SIBCON.2015.7147277

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N2 - Depth profiles of magnesium, fluorine and oxygen impurities was examined in the surface layers of alkali-halide crystals using method of secondary ion mass spectrometry. Samples of potassium bromide, coated with a surface film of magnesium fluoride were subjected to isothermal diffusion annealing in air at various times. It is shown that the diffusion of O ions occurs from the ambient atmosphere besides the diffusion of Mg and F ions during annealing of KBr crystals. Accurate estimation of the diffusion coefficients of cationic impurity Mg requires taking into account the possible interaction of this impurity and oxygen. The effect of an intensive electron beam on diffusion of magnesium impurity in crystals of fluoride of lithium is studied.

AB - Depth profiles of magnesium, fluorine and oxygen impurities was examined in the surface layers of alkali-halide crystals using method of secondary ion mass spectrometry. Samples of potassium bromide, coated with a surface film of magnesium fluoride were subjected to isothermal diffusion annealing in air at various times. It is shown that the diffusion of O ions occurs from the ambient atmosphere besides the diffusion of Mg and F ions during annealing of KBr crystals. Accurate estimation of the diffusion coefficients of cationic impurity Mg requires taking into account the possible interaction of this impurity and oxygen. The effect of an intensive electron beam on diffusion of magnesium impurity in crystals of fluoride of lithium is studied.

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Access to Document

10.1109/SIBCON.2015.7147277