Magnetic Properties in Sm2Fe17Nx under High Pressure.

Abstract

Pressure dependences of saturation magnetization and the Curie temperature in both Sm2Fe17 and its nitrogenated specimens were investigated, and the pressure dependences were converted to lattice constantdependences 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. [Sm2Fe17Nx, pressure effect, Curie temperature, saturation magnetization, permanent magnet materials]