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Oxigen Deficiency on Magnetic, Magnetoresistive and Magnetoelastic Properties of La1-xSrxMnO3-y Manganitesстатья
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: 19 июля 2013 г.
- Авторы: Zashchirinskii D.M., Koroleva L.I., Khapaeva T.M., Gurskii L.I., Kalanda N.A., Trukhan B.M.
- Журнал: Solid State Phenomena
- Том: 152
- Год издания: 2009
- Первая страница: 139
- Последняя страница: 142
- DOI: 10.4028/www.scientific.net/SSP.152-153.474
- Аннотация: The influence of oxygen deficiency on magnetization, paramagnetic susceptibility, electrical resistivity, magnetoresistance and magnetostriction of La1-xSrxMnO3-y (x = 0,0.2, 0.4; y=0, 0.13, 0.2) is studied. These properties demonstrate that the ferro – antiferromagnetic magnetic two-phase state are in the oxygen deficiency samples. In samples with y ¹ 0 in lattice sites, in which the oxygen ions are absent, electrons in twos are disposed from maintenance of a crystal electroneutrality. They partially (in x = 0.4, y = 0.13) or fully (in x = 0.4, y = 0.2; x = 0.2, y = 0.13,0.2) compensate single-charge acceptors (Sr2+ ions). In non-compensated donors two electron spins are antiparallel and do not form of the ferromagnetic nanoregions from the s-d exchange gain(ferrons). In sites of lattice with the oxygen vacancies the broken Mn-O-Mn connections present which break the ferromagnetic exchange interactions in them decreasing the middle magnetization in samples with x = 0.2, 0.4 and y = 0.13 and provoking a transition to superparamagnetic behavior in samples with x = 0.2, 0.4 and y = 0.2.
- Добавил в систему: Королёва Людмила Ивановна