Substitution effect of Ba at the Sr sites in Sr(Fe,Re)O3

Autor:	T. Yamakoshi, Zoltán Homonnay, Zoltán Németh, Kiyoshi Nomura, T. Kitamori, J. Shimoyama
Rok vydání:	2009
Předmět:	Nuclear and High Energy Physics Condensed matter physics Chemistry Condensed Matter Physics Atomic and Molecular Physics and Optics Ion Magnetization Crystallography Volume expansion Lattice (order) Mössbauer spectroscopy Double perovskite Substitution effect Physical and Theoretical Chemistry
Zdroj:	Hyperfine Interactions. 191:75-80
ISSN:	1572-9540 0304-3843
DOI:	10.1007/s10751-009-9955-2
Popis:	Substitution effect in double perovskites, Sr(FeRe)O3 (SFRO), was studied by Mossbauer spectroscopy and magnetization measurements. The samples were prepared by a sol–gel method. The fraction of alternately ordered Fe1 for SFRO is 72%, and the magnetization measured is consistent with \(3\times 0.72=2.16{\mu_B } \mathord{\left/ {\vphantom {{\mu _B } {\mbox{f}.\mbox{u}.}}} \right. \kern-\nulldelimiterspace} {\mbox{f}.\mbox{u}.}\), but the saturation magnetization drops to about one third of its initial value by substituting 5% Ba for Sr. It was considered to be due to the volume expansion of the lattice and the fine grains formed, as a result of the substitution of Ba ions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::db9d14a417683f4e22ca422679a8a6f7 https://doi.org/10.1007/s10751-009-9955-2 Zobrazit plný text záznamu Plný text ve formátu PDF