LaCrSb3: A New Itinerant Electron Ferromagnet with a Layered Structure

LaCrSb3, a new layered material, crystallizes in space group Pbcm with a = 13.266(3), b = 6.188(1), and c = 6.100(1) Å at 293 K as determined by neutron diffraction. Corrugated CrSb2 layers are stacked normal to [100] and are separated by La3+ ions and a nearly square planar Sb layer. Resistivity data indicate metallic behavior parallel to the c-axis. At low temperatures, the resistivity follows a T 2 law with an inflection point at about 125 …