KFU. Card publication. Investigation of surface defects in BaTiO3 nanopowders studied by XPS and positron annihilation lifetime spectroscopy

KAZAN
FEDERAL UNIVERSITY

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INVESTIGATION OF SURFACE DEFECTS IN BATIO3 NANOPOWDERS STUDIED BY XPS AND POSITRON ANNIHILATION LIFETIME SPECTROSCOPY

Form of presentation

Articles in international journals and collections

Year of publication

2021

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Authors, employees of KFU

Belushkin Aleksandr Vladislavovich, author

Other authors

Konieczny P. , author

Olejniczak A. , author

Siemek K. , author

Korotkov Leonid Nikolaevich, author

Bibliographic description in the original language

Siemek K. Investigation of surface defects in BaTiO3 nanopowders studied by XPS and positron annihilation lifetime spectroscopy/ K. Siemek, A. Olejniczak, L.N. Korotkov, P. Konieczny, A.V. Belushkin // Applied Surface Science .- 2022. - v.578.- p.151807.

Annotation

Defect structures of BaTiO3 nanoparticles annealed in the air and their correlation with magnetic properties have been studied. As main research techniques, complementary methods such as XPS and positron annihilation lifetime spectroscopy were used. It was found that low-temperature annealing creates additional oxygen vacancies in nanoparticles both inside and on the nanoparticle surface, and high-temperature annealing favors the reduction of Ti. These changes influence nanoparticle magnetism and occur due to the charge compensation process and grain growth mechanism. Performed studies show that complementary XPS and positron annihilation spectroscopy are the effective tools to determine nanoparticle surface defect structure, which can be used to fabricate new rare room-temperature multiferroics materials.

Keywords

Positron annihilation lifetime spectroscopy, XPS spectroscopy, Defects, Multiferroic materials, Magnetism,BaTiO3, Nanopowder

The name of the journal

Applied Surface Science

URL

http://creativecommons.org/licenses/by/4.0/

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

https://repository.kpfu.ru/eng/?p_id=260751&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Belushkin Aleksandr Vladislavovich	ru_RU
dc.contributor.author	Konieczny P.	ru_RU
dc.contributor.author	Olejniczak A.	ru_RU
dc.contributor.author	Siemek K.	ru_RU
dc.contributor.author	Korotkov Leonid Nikolaevich	ru_RU
dc.date.accessioned	2021-01-01T00:00:00Z	ru_RU
dc.date.available	2021-01-01T00:00:00Z	ru_RU
dc.date.issued	2021	ru_RU
dc.identifier.citation	Siemek K. Investigation of surface defects in BaTiO3 nanopowders studied by XPS and positron annihilation lifetime spectroscopy/ K. Siemek, A. Olejniczak, L.N. Korotkov, P. Konieczny, A.V. Belushkin // Applied Surface Science .- 2022. - v.578.- p.151807.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=260751&p_lang=2	ru_RU
dc.description.abstract	Applied Surface Science	ru_RU
dc.description.abstract	Defect structures of BaTiO3 nanoparticles annealed in the air and their correlation with magnetic properties have been studied. As main research techniques, complementary methods such as XPS and positron annihilation lifetime spectroscopy were used. It was found that low-temperature annealing creates additional oxygen vacancies in nanoparticles both inside and on the nanoparticle surface, and high-temperature annealing favors the reduction of Ti. These changes influence nanoparticle magnetism and occur due to the charge compensation process and grain growth mechanism. Performed studies show that complementary XPS and positron annihilation spectroscopy are the effective tools to determine nanoparticle surface defect structure, which can be used to fabricate new rare room-temperature multiferroics materials.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Positron annihilation lifetime spectroscopy	ru_RU
dc.subject	XPS spectroscopy	ru_RU
dc.subject	Defects	ru_RU
dc.subject	Multiferroic materials	ru_RU
dc.subject	Magnetism	ru_RU
dc.subject	BaTiO3	ru_RU
dc.subject	Nanopowder	ru_RU
dc.title	Investigation of surface defects in BaTiO3 nanopowders studied by XPS and positron annihilation lifetime spectroscopy	ru_RU
dc.type	Articles in international journals and collections	ru_RU