Magnetic and Mossbauer Study of Sr2FeMoO6 Partially Ordered Double Perovskite (論文特集号 〔日本応用磁気学会〕第24回学術講演会)
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概要
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Double perovskite Sr_2FeMoO_6 was successfully synthesized by a solid state reaction technique. The ordering parameter of Fe and Mo ions on the B site of the perovskite structure was estimated to be 62% by Rietveld analysis. Saturation magnetization at 5 K was 1.9 μ_B per formula unit, which is about half the theoretically predicted value. The Mossbauer spectrum at 20 K can be fitted by the two magnetic sextets that correspond to valence-fluctuated Fe^<2.5+> and Fe^<3+>. The reduced magnetization and the valences of Fe ions can be understood by considering the partially ordered atomic arrangement of Fe and Mo on the B site.
- 社団法人日本磁気学会の論文
- 2001-04-15
著者
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Taniyama T.
Tokyo Inst. Tech.
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Taniyama T.
Materials And Structures Laboratory Tokyo Institute Of Technology
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SAKUMA H.
Research Division of Functional Materials Design, Utsunomiya University
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Kitamoto Y.
Tokyo Institute of Technology
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Yamazaki Y.
Tokyo Institute of Technology
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Sakuma H.
Tokyo Institute of Technology
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Sakuma H.
Research Division Of Functional Materials Design Utsunomiya University
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