ChemInform Abstract: Ternary Manganese Compounds AMnX (A: Mg, Ca, Sr, or Ba; X: Si, Ge, or Sn): Characterization of the Magnetic Properties by Neutron Diffraction Experiments.

Abstract

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Unveiling ferromagnetism and antiferromagnetism in two dimensions at room temperature

“…For example, in pseudo-2D magnetic compounds MnAlGe, MnGaGe and MnZnSb, the perpendicular distance between adjacent Mn planes (corresponding to tetragonal prism height which is denoted by the out-of-plane lattice parameter c) is greater than the distance between nearest neighbors Mn atoms belonging to the basal planes of (proportional to the in-plane lattice parameter a). However, there is a group of AFM compounds of similar structures investigated [213][214][215][216][217][218][219] which magnetic behavior is associated with intra-planar distance, being named pseudo-multilayer materials. Therefore, we can define a more broadly family of 2D magnetic materials.…”

“…There are more MLI compounds that were left out of table 1 because of their critical temperature below RT. These are MnSrSn, MnCaSn, MnSrGe [213], MnKSb, MnKBi, MnCsBi [215], MnCeSi, MnPrSi, MnNdSi [217], MnRbSb, and MnC-sSb [218]. Also, noteworthy that some materials whose basal planes are occupied with Fe atoms such as FeMgGe, FeYSi [227] and FeLiP [228] may be candidates for MLI materials, requiring further experimental studies since, in addition to the structural order, they have a central cylindrical Fermi surface similar to that shown in figures 4(f) and (g) for the MnMX compounds.…”