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Structural investigation of Pb(MoxW1-x)O4 solid solutions via X-ray and neutron diffractionстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 26 августа 2016 г.
- Авторы: Kuz'micheva G.M., Kaurova I.A., Brykovskiy A.A., Rybakov V.B., Gorobets Yu N., Shekhovtsov A.N., Cousson A.
- Журнал: Materials Research Bulletin
- Том: 78
- Год издания: 2016
- Издательство: Pergamon Press Ltd.
- Местоположение издательства: United Kingdom
- Первая страница: 134
- Последняя страница: 140
- Аннотация: PbMoxW1-xO4 single-crystal solid solutions with x=0.2, 0.5, 0.8 have been grown by the Czochralski method in air atmosphere from the initial charge with over-stoichiometric amount of YNb04 (15 wt%). X-ray and neutron single-crystal and X-ray powder (Rietveld method) diffraction investigations of PbMoxW1-xO4 crystals indicate bulk inhomogeneity of their compositions, absence of color centers, and deviation of refined compositions from initial ones: the Nb5+ and Y3+ contents as well as oxygen vacancies content increase with increasing x in PbMoxW1-xO4. It was found that PbMoxW1-xO4 with x=0.2, 0.5, 0.8, 1.0 crystallizes in the scheelite-type structure with space group I4(1)/a, unlike crystal with x=0, which is characterized by the symmetry reduction to space group I (4) over bar caused by ordering of oxygen vacancies. The correlation between the a and c unit cell parameters and composition of cation sites, dodecahedral and tetrahedral, and deficiency of oxygen site was revealed. (C) 2016 Elsevier Ltd. All rights reserved.
- Добавил в систему: Рыбаков Виктор Борисович
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | PMWO.pdf | 591,0 КБ | 21 марта 2016 [Victor] |