Sm2Fe17N x : Site and valence of the interstitial nitrogen (abstract)

The discovery that nitriding Sm2Fe17 greatly enhances its Curie temperatures and the magnetic anisotropy, making it potentially attractive for permanent magnet applications, has intensified research efforts to understand the physical and chemical properties of this material. In this work we have combined x-ray diffraction, x-ray absorption near edge structure (XANES), and extended x-ray absorption fine structure (EXAFS) to determine the …