論文

2000年

Magnetic susceptibilities and Mossbauer spectra of perovskites A<inf>2</inf>FeNbO<inf>6</inf> (A = Sr, Ba)

Journal of Solid State Chemistry
  • Keitaro Tezuka
  • ,
  • Kou Henmi
  • ,
  • Yukio Hinatsu
  • ,
  • Nobuyuki M. Masaki

154
2
開始ページ
591
終了ページ
597
記述言語
掲載種別
研究論文(学術雑誌)
DOI
10.1006/jssc.2000.8900

Perovskite-type compounds A2FeNbO6 (A = Sr, Ba) were prepared. Their powder X-ray diffraction measurements and the Rietveld analysis show that the cations Fe3+ and Nb5+ over the six-coordinate B sites of the perovskite structure are arranged randomly for Sr2FeNbO6 and some of them order regularly for Ba2FeNbO6. They show magnetic susceptibility maxima at ca. 25 K. Below the temperatures, the divergence of the magnetic susceptibilities measured between the zero-field-cooled condition and the field-cooled condition has been measured. Field-cooled and zero-field- cooled susceptibilities show a hysteresis below maximum temperatures. These results indicate the existence of a ferromagnetic component in the magnetic moment. Mossbauer spectra measured at 6 K comprise a single magnetic hyperfine pattern typical of Fe3+, but with a high degree of line broadening. These data are discussed in terms of antiferromagnetic interactions with a ferromagnetic component. (C) 2000 Academic Press.

リンク情報
DOI
https://doi.org/10.1006/jssc.2000.8900
Scopus
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0033638630&origin=inward
Scopus Citedby
https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=0033638630&origin=inward
ID情報
  • DOI : 10.1006/jssc.2000.8900
  • ISSN : 0022-4596
  • SCOPUS ID : 0033638630

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