Magnetic Structure of Intermetallic Compound κ-Mn5Ge2

The magnetic structure of an N-type ferrimagnet κ-Mn 5 Ge 2 has been determined by Rietveld analysis of its powder neutron diffraction data. The magnetic moments on three Mn sites (4 b , 8 f , 8 j ) has been found to be collinear along an orthorhombic b axis, with the respective values µ(4 b )=2.54±0.11 µ B , µ(8 f )=2.26±0.06 µ B . and µ(8 j )=-3.11±0.08 µ B , at 13 K.