ESR Study of NH3+ and SeO3- Radicals in the Mixed Crystals [(NH4)1-xRx]2SO4(R=Rb,Cs)

  • Hirabayashi Katsuhiko
    Department of Applied Physics, Faculty of Engineering, Nagoya University
  • Abe Ryuji
    Department of Applied Physics, Faculty of Engineering, Nagoya University

書誌事項

タイトル別名
  • ESR Study of NH<SUB>3</SUB><SUP>+</SUP> and SeO<SUB>3</SUB><SUP>−</SUP> Radicals in the Mixed Crystals [(NH<SUB>4</SUB>)<SUB>1−<I>x</I></SUB>R<I><SUB>x</SUB></I>]<SUB>2</SUB>SO<SUB>4</SUB>(R=Rb, Cs)
  • ESR Study of NH3 + and SeO3 Radicals in
  • ESR Study of NH<sub>3</sub><sup>+</sup> and SeO<sub>3</sub><sup>-</sup> Radicals in the Mixed Crystals [(NH<sub>4</sub>)<sub>1-<i>x</i></sub>R<sub><i>x</i></sub>]<sub>2</sub>SO<sub>4</sub>(R=Rb, Cs)

この論文をさがす

抄録

ESR spectra of NH3+ and SeO3 radicals in γ-irradiated [(NH4)1−xRx]2SO4 crystals (R=Rb, Cs) resolving about 4 mol.% SeO4 were analysed. The intensity of the spectral lines for NH3+(β) was nearly equal to that for NH3+(α) in all the mixed crystals [(MH4)1−xRbx]2SO4 examined (x=0.09∼0.75). This fact indicates that the preferential replacement of R+ ion to the NH4+(β) ion which has been observed in [(NH4)1−xKx]2SO4, was not occurred in [(NH4)1−xRbx]2SO4. For [(NH4)1−xCsx]2SO4 with larger x, a trend that the NH4+(α) ion was rather easily replaced by Cs+ ion, was observed. This result could be explained reasonably by considerig the mean distance from the nearest oxygens surrounding each NH4+ ion. The analysis of SeO3 radical revealed that SO4−− ion might be deformed below Tc impling that SO4−− ion is responsible for a part of spontaneous polarization in ammonium sulfate and the mixed crystals.

収録刊行物

被引用文献 (1)*注記

もっと見る

参考文献 (12)*注記

もっと見る

詳細情報

問題の指摘

ページトップへ