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Giant volume magnetostriction in CMR manganites R1-xSrxMnO3 (R=Sm, Nd)статья
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: 18 июля 2013 г.
- Авторы: Abramovich A.I., Michurin A.V.
- Журнал: Low Temperature Physics
- Том: 27
- Номер: 4
- Год издания: 2001
- Издательство: AIP Publishing
- Местоположение издательства: United States
- Первая страница: 278
- Последняя страница: 282
- DOI: 10.1063/1.1365600
- Аннотация: Magnetization, ac initial magnetic susceptibility, resistance, magnetoresistance, thermal expansion and magnetostriction measurements are made on R1-xSrxMnO3 (R=Sm, x=0.33, 0.40, 0.45; R=Nd, x=0.33, 0.45) compounds. For all compounds in the T-C region we observe a large volume contraction DeltaV/V approximate to0.1% and unusual behavior of the volume magnetostriction omega, namely, a peak of anomalous magnitude of negative volume magnetostriction on the omega (T) curve. We obtain a giant negative volume magnetostriction of similar to 5x10(-4) at a relatively low magnetic field B=0.9 T and similar to 10(-3) at a high magnetic field B=13 T for Sm samples. The magnetostriction of Nd compounds is one order of magnitude less. For all compounds the giant magnetostriction is accompanied by colossal negative magnetoresistance equal to 78, 72, and 44% at B=0.9 T for Sm compounds with x=0.33, 0.40, and 0.45, respectively. All of the observed properties are explained in the framework of an electronic phase separation model. (C) 2001 American Institute of Physics.
- Добавил в систему: Абрамович Анна Ивановна