Electronic structure and magnetic properties of HoMn2 single crystals

Single crystals of the HoMn2 compound were grown by the Czochralski method from a levitated melt. The thermal dependence of the electrical resistivity exhibits a magnetic transition at 29 K. A second transition occurs at 21 K . Moreover, for p(T) a T-2 dependence at low temperatures and saturation ef fects above 250 K were found. The magnetization in strong magnetic fields a nd the DC and AC magnetic susceptibilities measured along the principal cry stallographic directions show ordering of the holmium moments to a spin-can ted magnetic structure at about 25 K and a spin reorientation below 21 K. ( C) 2001 Elsevier Science BN. All rights reserved.