Interplay between phase formation mechanisms and magnetism in the Sr2FeMoO6–δ metal-oxide compound
✍ Scribed by N. Kalanda; S. Demyanov; W. Masselink; A. Mogilatenko; M. Chashnikova; N. Sobolev; O. Fedosenko
- Publisher
- John Wiley and Sons
- Year
- 2011
- Tongue
- English
- Weight
- 221 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0232-1300
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✦ Synopsis
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-у precursors have been found and interpreted.