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Phase transitions, magnetotransport and magnetocaloric effects in a new family of quaternary Ni-Mn-In-Z Heusler alloysстатья
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: Kazakov A., Prudnikov V., Granovsky A., Perov N., Dubenko I., Pathak A.K., Samanta T., Stadler S., Ali N., Zhukov A., Ilyin M., Gonzalez J.
- Журнал: Journal of Nanoscience and Nanotechnology
- Том: 12
- Номер: 9
- Год издания: 2012
- Издательство: American Scientific Publishers
- Местоположение издательства: United States
- Первая страница: 7426
- Последняя страница: 7431
- DOI: 10.1166/jnn.2012.6542
- Аннотация: The magnetic, magnetotransport, and magnetocaloric properties near compound phase transitions in Ni50Mn35In14Z (Z=In, Ge, Al), and Ni48Co2Mn35In15 Heusler alloys have been studied using VSM and SQUID magnetometers (at magnetic fields (H) up to 5 T), four-probe method (at H = 0.005–1.5 T), and an adiabatic magnetocalorimeter (for H changes up to H = 18 T), respectively. The martensitic transformation (MT) is accompanied by large magnetoresistance (up to 70%), a significant change in resistivity (up to 200%), and a sign reversal of the ordinary Hall effect coefficient, all related to a strong change in the electronic spectrum at the MT. The field dependences of the Hall resistance are complex in the vicinity of the MT, indicating a change in the relative concentrations of the austenite and martensite phases at strong fields. Negative and positive changes in adiabatic temperatures of about −2 K and +2 K have been observed in the vicinity of MT and Curie temperatures, respectively, for H = 1.8 T.
- Добавил в систему: Казаков Александр Павлович