Phase transitions in the nanopowders KTa₀.₅Nb₀.₅O₃ studied by Raman spectroscopy

Raman spectra of KTa₀.₅Nb₀.₅O₃ nanopowder solid solution were obtained at the temperatures from –190°C to 600°C and investigated for the first time. The compound was synthesized by a new technology. Temperature dependences of the intensity, width and frequency of the B₁(TO₂), A₁(TO₁), B₁(TO₃), A₁(TO...

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Дата:2013
Автори: Golovina, I.S., Bryksa, V.P., Strelchuk, V.V., Geifman, I.N.
Формат: Стаття
Мова:English
Опубліковано: НТК «Інститут монокристалів» НАН України 2013
Назва видання:Functional Materials
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Онлайн доступ:http://dspace.nbuv.gov.ua/handle/123456789/119908
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Цитувати:Phase transitions in the nanopowders KTa₀.₅Nb₀.₅O₃ studied by Raman spectroscopy / I.S. Golovina, V.P. Bryksa, V.V. Strelchuk, I.N. Geifman // Functional Materials. — 2013. — Т. 20, № 1. — С. 75-80. — Бібліогр.: 20 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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spelling irk-123456789-1199082017-06-11T03:03:04Z Phase transitions in the nanopowders KTa₀.₅Nb₀.₅O₃ studied by Raman spectroscopy Golovina, I.S. Bryksa, V.P. Strelchuk, V.V. Geifman, I.N. Characterization and properties Raman spectra of KTa₀.₅Nb₀.₅O₃ nanopowder solid solution were obtained at the temperatures from –190°C to 600°C and investigated for the first time. The compound was synthesized by a new technology. Temperature dependences of the intensity, width and frequency of the B₁(TO₂), A₁(TO₁), B₁(TO₃), A₁(TO₃) and B₂(TO₃) modes are thoroughly analyzed. A significant expanding of the temperature ranges of all phase transitions, correlated with a spread of particle sizes is registered. It was found that an average temperature of each of the phase transitions is shifted in different way, in particular: a low-temperature transition at 30 degrees higher, the middle transition at 10 degrees higher, and the ferroelectric phase transition occurs at 20 degrees lower than the temperature of the corresponding transitions in single-crystal KTa₀.₅Nb₀.₅O₃. 2013 Article Phase transitions in the nanopowders KTa₀.₅Nb₀.₅O₃ studied by Raman spectroscopy / I.S. Golovina, V.P. Bryksa, V.V. Strelchuk, I.N. Geifman // Functional Materials. — 2013. — Т. 20, № 1. — С. 75-80. — Бібліогр.: 20 назв. — англ. 1027-5495 DOI: dx.doi.org/10.15407/fm20.01.075 http://dspace.nbuv.gov.ua/handle/123456789/119908 en Functional Materials НТК «Інститут монокристалів» НАН України
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection DSpace DC
language English
topic Characterization and properties
Characterization and properties
spellingShingle Characterization and properties
Characterization and properties
Golovina, I.S.
Bryksa, V.P.
Strelchuk, V.V.
Geifman, I.N.
Phase transitions in the nanopowders KTa₀.₅Nb₀.₅O₃ studied by Raman spectroscopy
Functional Materials
description Raman spectra of KTa₀.₅Nb₀.₅O₃ nanopowder solid solution were obtained at the temperatures from –190°C to 600°C and investigated for the first time. The compound was synthesized by a new technology. Temperature dependences of the intensity, width and frequency of the B₁(TO₂), A₁(TO₁), B₁(TO₃), A₁(TO₃) and B₂(TO₃) modes are thoroughly analyzed. A significant expanding of the temperature ranges of all phase transitions, correlated with a spread of particle sizes is registered. It was found that an average temperature of each of the phase transitions is shifted in different way, in particular: a low-temperature transition at 30 degrees higher, the middle transition at 10 degrees higher, and the ferroelectric phase transition occurs at 20 degrees lower than the temperature of the corresponding transitions in single-crystal KTa₀.₅Nb₀.₅O₃.
format Article
author Golovina, I.S.
Bryksa, V.P.
Strelchuk, V.V.
Geifman, I.N.
author_facet Golovina, I.S.
Bryksa, V.P.
Strelchuk, V.V.
Geifman, I.N.
author_sort Golovina, I.S.
title Phase transitions in the nanopowders KTa₀.₅Nb₀.₅O₃ studied by Raman spectroscopy
title_short Phase transitions in the nanopowders KTa₀.₅Nb₀.₅O₃ studied by Raman spectroscopy
title_full Phase transitions in the nanopowders KTa₀.₅Nb₀.₅O₃ studied by Raman spectroscopy
title_fullStr Phase transitions in the nanopowders KTa₀.₅Nb₀.₅O₃ studied by Raman spectroscopy
title_full_unstemmed Phase transitions in the nanopowders KTa₀.₅Nb₀.₅O₃ studied by Raman spectroscopy
title_sort phase transitions in the nanopowders kta₀.₅nb₀.₅o₃ studied by raman spectroscopy
publisher НТК «Інститут монокристалів» НАН України
publishDate 2013
topic_facet Characterization and properties
url http://dspace.nbuv.gov.ua/handle/123456789/119908
citation_txt Phase transitions in the nanopowders KTa₀.₅Nb₀.₅O₃ studied by Raman spectroscopy / I.S. Golovina, V.P. Bryksa, V.V. Strelchuk, I.N. Geifman // Functional Materials. — 2013. — Т. 20, № 1. — С. 75-80. — Бібліогр.: 20 назв. — англ.
series Functional Materials
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first_indexed 2023-10-18T20:35:44Z
last_indexed 2023-10-18T20:35:44Z
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