Cation Dependence of Neel Point in Perovskite-Like Compounds RFe^<3+>O_3, Where R is a Rare-Earth
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It is pointed out that the variation of N<Sel point in the series of orthoferritesRFe"0, (R; a rare-earth) deviates from the angular dependence of the typecos" cp (P: bond angle), if the Fe"-0" l distance is assumed to be constantthroughout the series. The change in the Fe-0 distance, to which the deviationof N<Set point is attributed, is shown to agree qualitatively with the one estimatedfrom the change in the coordination number of the anion in the position 8(d).It is shown that the derived values agree with the measured Fe-0 distances inthe orthoferrites from Lu to Sm but do not from Nd to La.
- 社団法人日本物理学会の論文
- 1977-04-15
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