STRUCTURAL AND MAGNETIC-PROPERTIES OF CE(FE,M)(12)N-X, INTERSTITIAL COMPOUNDS, M=TI, V, CR, AND MO

Stabilizing the 1-12 phase with cerium was possible using a special he at treatment. The structural and magnetic properties of Ce(Fe,M)(12) a nd their nitrides, for M=Ti, V, Cr, Mo, etc., were investigated using x-ray-diffraction and magnetic measurements. The effects of interstiti al nitrogen atoms on lattice parameters, Curie temperature, saturation magnetization, and magnetocrystalline anisotropy are reported. A prof ound change was found on the magnetocrystalline anisotropy. As an exam ple, in the case of CeMo2Fe10Nx, the easy magnetization direction chan ges from c axis to the basal plane depending on the nitrogen content x .