Synthesis and High-Field Magnetic Measurement of Ba₂Sn_2+xMe_1+xFe_10-2xO₂₂

Abstract

  We report the successful synthesis of Ba₂Sn_2+xMe_1+xFe_10-2xO₂₂, 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.