The structure, Curie temperature and magnetostriction of Pr_ 0.1Ce_ 0.6Tb_ 0.3Fe_ 1.9-xB_x compounds were investigated by means of X-ray diffraction using a Vibrating sample magnetometer and a standard strain techniqu...The structure, Curie temperature and magnetostriction of Pr_ 0.1Ce_ 0.6Tb_ 0.3Fe_ 1.9-xB_x compounds were investigated by means of X-ray diffraction using a Vibrating sample magnetometer and a standard strain technique. All the samples show entire MgCu_2-type laves phase structure. The lattice parameter decreases slightly when x≤0.1, and decreases rapidly when x>0.1 with increasing B content. Curie temperature exhibits a peak at x=0.1. The substitution of B for Fe causes the decrease of magnetostriction at room temperature.展开更多
文摘The structure, Curie temperature and magnetostriction of Pr_ 0.1Ce_ 0.6Tb_ 0.3Fe_ 1.9-xB_x compounds were investigated by means of X-ray diffraction using a Vibrating sample magnetometer and a standard strain technique. All the samples show entire MgCu_2-type laves phase structure. The lattice parameter decreases slightly when x≤0.1, and decreases rapidly when x>0.1 with increasing B content. Curie temperature exhibits a peak at x=0.1. The substitution of B for Fe causes the decrease of magnetostriction at room temperature.
