Gas-phase interstitially modified intermetallics R(Fe11Ti) Z1- delta . II. 3d magnetization of the compounds Y(Fe11Ti) Z1- delta (Z=N, C)

Abstract

For pt. I see ibid., vol.4, p.5573 (1992) The magnetization, Curie temperature and 57Fe hyperfine fields are measured for Y(Fe11Ti) and the interstitial nitride and carbide. Data are compared with the results of electronic structure calculations by the OLCAO method. All compounds are weak ferromagnets. The increase of magnetization from 19.0 mu B FU-1 in the parent compound to 21.6 mu B FU-1 in the carbide and nitride is essentially due to volume expansion. A corresponding increase in average 57Fe hyperfine field is observed in the nitride, but not in the carbide due to different 4s transferred hyperfine fields.