Magnetism in DyGd4Si2Ge2

A new rare-earth intermetallic compound, namely DyGd4Si2Ge2 having the mono clinic Gd5Si2Ge2-type crystal structure at room temperature has been synthe sized and its. magnetic susceptibility, electrical resistivity and thermoel ectric power are measured in the temperature range 20-300 K. Magnetic susce ptibility results reveal a transition from a room temperature paramagnetic phase to a ferromagnetic phase around 65 K (T-C). Electrical resistivity of DyGd4Si2Ge2 is metal-like and has a T-2 dependence at temperatures less th an T-C. Thermopower displays a change of slope followed by a peak feature j ust below T-C. (C) 2001 Elsevier Science B.V. All rights reserved.