Magnetic properties of Sm2Fe17Nx, x=3.9

[摘要] Hydrogen decrepitation of Sm2Fe17 followed by treatment in ammonia produces interstitial nitrides with nitrogen concentrations greater than three per formula unit. Measurements of the lattice parameters and magnetic properties are consistent with interstitial nitrogen occupation of the 9e and either the 3b or 18g sites. The effect of the extra nitrogen on the iron sublattice is to reduce the overall moment, particularly of the 18h sites. The magnetocrystalline anisotropy constants K-1 and K-2 indicate a significant decrease in the easy-axis character compared to Sm2Fe17N3 material.

[发布日期] 1996-05-01

[效力级别]  Proceedings Paper

[关键词] RE-TM alloys, interstitial nitrides;magnetocrystalline anisotropy;Mossbauer spectroscopy, RE-TM compounds