The magnetic phase diagram of DyFe12−xMox (1.00≤x≤3.00)

Abstract

The magnetocrystalline anisotropy and magnetic structure of DyFe12−xMox (1.00≤x≤3.00) have been investigated in detail by X-ray diffraction, thermomagnetic analysis, AC magnetic susceptibility, singular point detection technique and angular-magnetization measurement. A magnetic phase diagram of DyFe12−xMox (1.00≤x≤3.00) has been proposed. At room temperature, all DyFe12−xMox compounds exhibit uniaxial anisotropy. At low temperature, a spin reorientation transition of axis-to-cone was observed for DyFe12−xMox compounds with low Mo concentration, x<2.00. The spin reorientation temperature decreases with increasing Mo concentration. For DyFe12−xMox compounds with high Mo concentration, magnetohistory effects were observed below 48 K.