Structural and magnetic properties of Pr_(0.3)Th_(0.7)Fe_(1.9-x)Mn_x Ribbons

摘要

The structural and magnetic properties of Pr_(0.3)Tb_(0.7)Fe_(1.9-x)Mn_x ribbons have been investigated using X-ray diffraction, vibrating sample magnetometry and the standard strain gauge technique. According to the XRD spectra, all ribbons of Pr_(0.3)Tb_(0.7)Fe_(1.9-x)Mn_x demonstratea pure Laves phase, which benefits from the melt-spun technology. The Curie temperature of the Pr_(0.3)Tb_(0.7)Fe_(1.9-x)Mn_x alloys decreases gradually from 366°C for x=0.1 to 328°C for x=0.3. Meanwhile, magnetostriction at room temperature demonstrates a maximum at x=0.1.