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Interplay between phase formation mechanisms and magnetism in the Sr 2 FeMoO 6–δ metal‐oxide compound
Author(s) -
Kalanda N.,
Demyanov S.,
Masselink W.,
Mogilatenko A.,
Chashnikova M.,
Sobolev N.,
Fedosenko O.
Publication year - 2011
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201000213
Subject(s) - strontium , oxide , magnetism , crystallization , metal , spintronics , chemistry , materials science , crystallography , condensed matter physics , ferromagnetism , physics , metallurgy , organic chemistry
Double perovskites with the structural formula A 2 BB′O 6±δ , especially the strontium ferromolybdate Sr 2 FeMoO 6–δ , have attracted a lot of attention due to their unique magnetic and electrical properties and a possible application in spintronic devices. However, a strict correlation between the functional characteristics of Sr 2 FeMoO 6–δ and its synthesis technology has been lacking up to date. Thus, we have studied in the present work the crystallization kinetics of Sr 2 FeMoO 6–δ using reagents with different pre‐history as well as the structural and magnetic properties of the obtained compounds. Differences in the crystallization kinetics as well as higher magnetic inhomogeneity of Sr 2 FeMoO 6–δ synthesised from a mixture of MoO 3 , Fe 2 O 3 , SrCO 3 in comparison with the compound synthesised from the SrFeO 2.5 and SrMoO 4–y precursors have been found and interpreted. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)