Crystallographic phases and magnetic properties of iron nitride films

作者: Guo-Ke Li , Yan Liu , Rui-Bin Zhao , Jun-Jie Shen , Shang Wang

DOI: 10.1016/J.TSF.2015.04.080

关键词:

摘要: Abstract Iron nitride films, including single phase films of α -FeN (expanded bcc Fe), γ′ -Fe 4 N, e 3 −  x N (0 ≤   ≤ 1), and γ″ -FeN, were sputtered onto AlN buffered glass substrates. It was found possible to control the phases in merely by changing nitrogen partial pressure during deposition. The magnetization decreased with increased concentration dropped zero when N:Fe ratio above 0.5. experimental results, along spin polarized band calculations, have been used discuss analyze magnetic properties iron nitrides. has demonstrated that addition influencing lattice constant various nitrides, nearest atoms a significant influence on exchange splitting Fe atoms. Due hybridization Fe-3 d N-2 p states, moment decreases an increase number neighbor

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