The Influence of Oxygen Activity on Phase Composition, Crystal Structure, and Electrical Conductivity of CaV1–xMoxO3±δ Научная публикация
Журнал |
Crystals
, E-ISSN: 2073-4352 |
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Вых. Данные | Год: 2022, Том: 12, Номер: 3, Номер статьи : 419, Страниц : 14 DOI: 10.3390/cryst12030419 | ||||||
Ключевые слова | perovskite; vanadate; molybdate; metal–like conductivity; chemical expansion; phase separation | ||||||
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Организации |
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Реферат:
Perovskite–like vanadate–molybdates are interesting from the point of view of their metal–like conductivity, which combines the correlated and free electron nature. A series of CaV1–xMoxO3–δ solid solutions was considered near the Mo concentration x = 0.4, where a difficult–to–perceive structural transition was previously detected. High-resolution transmission electron microscopy revealed the phase separation of CaV0.6Mo0.4O3–δ into nanoscale regions with different ratios of V and Mo concentrations, despite X–ray diffraction analysis exhibiting a homogeneous perovskite structure. The rest of the compositions from the CaV1–xMoxO3–δ series do not show phase separation. The nonmonotonic behavior of the conductivity and linear expansion of CaV1–xMoxO3±δ was shown when the oxygen activity in the N2-H2-H2O gas mixture was varied, which is mainly determined by the partial decomposition of the perovskite phase. Against this background, the behavior of the electrical properties of the CaV1–xMoxO3±δ individual phase remains unclear.
Библиографическая ссылка:
Belyakov S.A.
, Gerasimov E.Y.
, Kuzmin A.V.
The Influence of Oxygen Activity on Phase Composition, Crystal Structure, and Electrical Conductivity of CaV1–xMoxO3±δ
Crystals. 2022. V.12. N3. 419 :1-14. DOI: 10.3390/cryst12030419 WOS Scopus РИНЦ
The Influence of Oxygen Activity on Phase Composition, Crystal Structure, and Electrical Conductivity of CaV1–xMoxO3±δ
Crystals. 2022. V.12. N3. 419 :1-14. DOI: 10.3390/cryst12030419 WOS Scopus РИНЦ
Даты:
Поступила в редакцию: | 28 февр. 2022 г. |
Принята к публикации: | 16 мар. 2022 г. |
Опубликована в печати: | 18 мар. 2022 г. |
Опубликована online: | 18 мар. 2022 г. |
Идентификаторы БД:
Web of science | WOS:000777005100001 |
Scopus | 2-s2.0-85127397056 |
РИНЦ | 48425150 |
Chemical Abstracts | 2022:870809 |
Chemical Abstracts (print) | 178:304926 |
OpenAlex | W4221119235 |
Цитирование в БД:
Пока нет цитирований