|
ИСТИНА |
Войти в систему Регистрация |
ИПМех РАН |
||
Magnetocaloric effect in Sm0 55Sr0 45MnO3 manganiteстатья
Информация о цитировании статьи получена из
Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 27 мая 2015 г.
- Авторы: Zashchirindkii D., Morozov A., Koroleva L., Balbachov A.
- Журнал: Solid State Phenomena
- Том: 168
- Номер: 169
- Год издания: 2011
- Первая страница: 373
- Последняя страница: 375
- DOI: 10.4028/www.scientific.net/SSP.
- Аннотация: Magnetocaloric effect (deltaT-effect) was studied by direct method on three samples of Sm0.55Sr0.45MnO3 manganite: ceramic (C) sample and two single crystals, annealed in oxygen (O) or in air atmosphere (a). The temperature dependence of deltaT-effect of all the samples has maximum at Tmax equal to 143.3 Kfor A-sample, 344 K for O-sample and 143 K for C-sample.In these maxima deltaT values are 0.8 K, 0.41 K and 0.4 K for A-, O- and C-samples respectively. In addition the deltaT(T) curve of A-samplehas minimum at Tmin = 120 K and delta-valuein minimum is equal to ~0.1 K. The maximum value of deltaT-effect increases with with H up to the maximum field of measurement 14.2 kOe.When this takes placethe rate of this increasing is higher at H>8 kOe than at H<8 kOe. The above listed peculiaarities of deltaT-effect are explained by the presence in the samples of ferromagnetic, antiferromagnetic A-type and antiferromagnetic CE-type clusters.
- Добавил в систему: Королёва Людмила Ивановна