Synthesis and High-Field Magnetic Measurement of Ba₂Sn₂+xMe₁+xFe₁₀-₂xO₂₂

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  • Harasawa H.
    Graduate School of Science and Engineering, Saitama Univ.
  • Mitamura H.
    Institute for Solid State Physics, Univ. of Tokyo
  • Tokunaga M.
    Institute for Solid State Physics, Univ. of Tokyo
  • Kakizaki K.
    Graduate School of Science and Engineering, Saitama Univ.
  • Kamishima K.
    Graduate School of Science and Engineering, Saitama Univ.

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タイトル別名
  • Synthesis and High-Field Magnetic Measurement of Ba<sub>2</sub>Sn<sub>2+<i>x</i></sub><i>Me</i><sub>1+<i>x</i></sub>Fe<sub>10-2<i>x</i></sub>O<sub>22</sub>

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<p>  We report the successful synthesis of Ba2Sn2+xMe1+xFe10-2xO22, a series of single-phase materials derived by substituting divalent metals (Me2+=Ni2+, Co2+, Zn2+, Mg2+, and Cu2+) into the Ba2Sn2MeFe10O22 layered structure. High-field magnetization measurements of the parent compound (Ba2Sn2MeFe10O22) unveil a unique magnetic response, marked by a plateau at high fields, indicating a field-induced alignment of moments near barium cations. This alignment contrasts with the antiferromagnetic arrangement of magnetic moments observed at low fields in a previous neutron diffraction study. The decrease in magnetization with substitution suggests the absence of the preference of Sn4+ for down-spin sites. This work paves the way for further exploration of the magnetic properties of Ba2Sn2MeFe10O22 and its derivatives.</p>

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