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Relation between giant volume magnetostriction, colossal magnetoresistance, and crystal lattice softening in manganites La1-x A(y)MnO(3) (Aстатья
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: Koroleva L.I., Demin R.V., Kozlov A.V., Zashchirinskii D.M., Mukovskii Ya M.
- Журнал: Journal of Experimental and Theoretical Physics
- Том: 104
- Номер: 12
- Год издания: 2007
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 76
- Последняя страница: 86
- DOI: 10.1134/S0020168507010049
- Аннотация: The temperature dependence of the resistance in Sm0.55Sr0.45MnO3 at zero magnetic field and its first derivative served for the determination of T-C which turned out to be equal to 129.1 K. Then, the resistance measurements were carried out as functions of the stationary magnetic fields up to 14 T at the following temperatures: 118.6, 124.6, 133.6 and 139.7 K. Two of them are below and two of them are above T-C. It turned out that at all the four temperatures the resistance reveals a hysteresis. It turned also out that the closer the temperature to T-C the greater this hysteresis. At all the four temperatures the magnetoresistance is negative, its absolute value depends on the magnetic field and reaches 100% at 12 T. At lower fields the absolute value of the negative magnetoresistance increases monotonically with the decrease of temperature starting from 139.7 K. On the other hand, a maximum observed on all the primary and secondary curves above T-C moves with the decrease of temperature towards the lower magnetic fields and disappears on all the curves below T-C. On the secondary curves above T-C this maximum is flat. (c) 2006 Elsevier B.V. All rights reserved.
- Добавил в систему: Королёва Людмила Ивановна