Abstract
Structural and magnetic properties of Cr-based compound CrAlGe were investigated. The crystal structure was found to be an orthorhombic TiSi2-type with lattice parameters a = 0.4770nm, b = 0.8254nm and c = 0.8725nm at room temperature. Magnetization curve of CrAlGe showed the ferromagnetic behavior. The saturation magnetic moment, spontaneous magnetic moment and Curie temperature of CrAlGe were determined to be 0.45μB/f.u., 0.41μB/f.u. and TC = 80K, respectively. For the temperature T below 30K, the decrease in the square of the spontaneous magnetization M0(T)2 was proportional to T2. However, for 30 <T <TC, the decrease in M0(T)2 was proportional to T4/3. Obtained results suggest that CrAlGe is a weak itinerant electron ferromagnet.
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