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Connection of thermopower, magnetothermopower with resistivity and magnetoresestivity in manganites with Nd and Smдоклад на конференции
- Авторы: Koroleva L.L., Batashev I.K., Slawska-Waniewska A., Balbashov A.M., Szymczak H., Morozov A.S.
- Международная Конференция (Симпозиум) : Moscow International Symposium on Magnetism (MISM 2017)
- Даты проведения конференции: 1-5 июля 2017
- Дата доклада: 6 июля 2017
- Тип доклада: Стендовый
- Докладчик: не указан
- Место проведения: Физический факультет МГУ имени М.В.Ломоносова, г. Москва, Russia
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Аннотация доклада:
In this work thermopower S, magnetothermopower dS/S, electrical resistivity ro and magnetoresistance dr/r were studied in single-crystals Sm(1- x)SrxMnO3 (x=0.15, 0.2, 0.25, 0.3) and Nd(1-x)SrxMnO3(x=0.15, 0.2,0.3), The study of the magnetic properties of these compounds Showed That they consist of ferromagnetic clusters located in A-type antiferromagnetic matrix. Giant negative magnetoresistance? whish was observed in these compounds, indicates that these clusters belong to ferron type. A sharp increase of S and alue of negative dS/Snear Curie point means that thermopower is caused of ferrons. Therefore thermopower is determined by the doping level and volume of the sample/
- Добавил в систему: Королёва Людмила Ивановна