Magnetic Properties in Sm₂Fe₁₇N_x under High Pressure

抄録

Pressure dependences of saturation magnetization and the Curie temperature in both Sm₂Fe₁₇ and its ni-trogenated specimens were investigated, and the pressure dependences were converted to lattice constant-dependences using the data of the X-ray diffraction measurements. From an analysis of these data, it is concluded that the increase in the saturation magnetization by nitrogenation is due to the simple expansion of the lattice, while to explain the increase of TC by nitrogenation, some other mechanism must be taken into account.