KFU. Card publication. Structure and Metastability of MF2 (M=Ca, Sr, Ba) Fine Powders Mechanochemically Doped with Er3+ Ions

KAZAN
FEDERAL UNIVERSITY

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STRUCTURE AND METASTABILITY OF MF2 (M=CA, SR, BA) FINE POWDERS MECHANOCHEMICALLY DOPED WITH ER3+ IONS

Form of presentation

Articles in international journals and collections

Year of publication

2015

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Authors, employees of KFU

Irisova Irina Andreevna, author

Korableva Stella Leonidovna, author

Rodionov Aleksandr Aleksandrovich, author

Tayurskiy Dmitriy Albertovich, author

Yusupov Roman Valerevich, author

Authors, students KFU

Kiyamov Ayrat Gazinurovich, author

Bibliographic description in the original language

Structure and Metastability of MF2 (M=Ca, Sr, Ba) Fine Powders Mechanochemically Doped with Er3+ Ions /I. Irisova, A. Kiiamov, S. Korableva, A. Rodionov, D. Tayurskii, R. Yusupov // Applied Magnetic Resonance. – 2015. – v. 46. – PP. 515-522.

Annotation

In the paper thermal treatment investigations of the MF2 (M = Ca, Sr, Ba) fine powders mechanochemically doped with Er3? ions using electron paramagnetic resonance and X-ray diffraction are presented. It is shown that the prepared samples are found in the nonequilibrium metastable state char- acterized by the high concentration of the cationic vacancies and prevalence of the cubic symmetry-doped Er3? ion centers. Vacancies formed when the deformation exceeds the elastic limit serve both as the means for a nonlocal charge compensation and a route for mechanically activated diffusion. Annealing brings the powders to the ground state with the most of the vacancies healed and the trigonal symmetry of the impurity Er3? centers in SrF2 and BaF2 due to the local compensation by the interstitial fluorine ion.

Keywords

electron paramagnetic resonance, mechanical activation, fluorides, rare-earth ions

The name of the journal

Applied Magnetic Resonance

URL

http://link.springer.com/article/10.1007/s00723-015-0643-x

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=108695&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Irisova Irina Andreevna	ru_RU
dc.contributor.author	Korableva Stella Leonidovna	ru_RU
dc.contributor.author	Rodionov Aleksandr Aleksandrovich	ru_RU
dc.contributor.author	Tayurskiy Dmitriy Albertovich	ru_RU
dc.contributor.author	Yusupov Roman Valerevich	ru_RU
dc.contributor.author	Kiyamov Ayrat Gazinurovich	ru_RU
dc.date.accessioned	2015-01-01T00:00:00Z	ru_RU
dc.date.available	2015-01-01T00:00:00Z	ru_RU
dc.date.issued	2015	ru_RU
dc.identifier.citation	Structure and Metastability of MF2 (M=Ca, Sr, Ba) Fine Powders Mechanochemically Doped with Er3+ Ions /I. Irisova, A. Kiiamov, S. Korableva, A. Rodionov, D. Tayurskii, R. Yusupov // Applied Magnetic Resonance. – 2015. – v. 46. – PP. 515-522.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=108695&p_lang=2	ru_RU
dc.description.abstract	Applied Magnetic Resonance	ru_RU
dc.description.abstract	In the paper thermal treatment investigations of the MF2 (M = Ca, Sr, Ba) fine powders mechanochemically doped with Er3? ions using electron paramagnetic resonance and X-ray diffraction are presented. It is shown that the prepared samples are found in the nonequilibrium metastable state char- acterized by the high concentration of the cationic vacancies and prevalence of the cubic symmetry-doped Er3? ion centers. Vacancies formed when the deformation exceeds the elastic limit serve both as the means for a nonlocal charge compensation and a route for mechanically activated diffusion. Annealing brings the powders to the ground state with the most of the vacancies healed and the trigonal symmetry of the impurity Er3? centers in SrF2 and BaF2 due to the local compensation by the interstitial fluorine ion.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	electron paramagnetic resonance	ru_RU
dc.subject	mechanical activation	ru_RU
dc.subject	fluorides	ru_RU
dc.subject	rare-earth ions	ru_RU
dc.title	Structure and Metastability of MF2 (M=Ca, Sr, Ba) Fine Powders Mechanochemically Doped with Er3+ Ions	ru_RU
dc.type	Articles in international journals and collections	ru_RU