Magnetic structures of Fe_32+δGe₃₃As₂ and Fe_32+δ′Ge_35−xP_x intermetallic compounds: a neutron diffraction and ⁵⁷Fe Mössbauer spectroscopy study

Abstract

Fe32.1Ge33As2 and Fe32.5Ge32P3 demonstrate complex commensurate antiferromagnetic ordering below 125 K accompanied by a spin reorientation upon further cooling.

Itinerant ferromagnet Re4−xMnxGe7−δ (x = 0.9–1.5, δ = 0.42–0.44) with incommensurate chimney-ladder structure stabilised at ambient pressure

“…[13][14][15]22 The structural features of chimney-ladders make the latter property particularly interesting. While the complex crystal structure can give rise to similarly complex magnetic structure by itself, 23,24 the absence of the centre of inversion in a large number of chimney-ladder phases opens a possibility for a non-collinear magnetic structure, which was suggested in the case of Cr 11 Ge 19 . 13 Several chimney-ladder phases are stable only at high pressures above several GPa, including Co 2 Si 3 , Re 4 Ge 7 and Mn 3 Ge 5 .…”