F. Catalina, C.N. Afonso, et al.
Journal of Materials Science
We present a crystallographic template for the growth of the range of Fe-N phases on Si(001) by lattice matching on selected underlayers. Epitaxial films of pure γ′-Fe, γ′-Fe4N, and α′-Fe8N (N martensite) were grown individually by the optimization of reactive N2 sputtering parameters. The orientation relation of the Fe-N phases was Fe-N(001)||Ag(001)||Si(001) and Fe-N[100]||Ag[110]||Si[100]. Annealing the α‴-Fe8N films resulted in the formation of α′-Fe8N/α″-Fe16N2 mixtures. In addition to the crystallographic and structural analysis, quantification of x-ray diffraction peak intensities confirmed that the α′/α″ mixtures contained as much as 46 vol % α″ (remaining α′). Vibrating sample magnetometry and SQUID magnetometry measurements of the α× and α′ (54%)/α″(46%) mixture, respectively, indicate enhanced magnetic moments for both the α′ and α′ phases with respect to pure Fe. © 1996 American Institute of Physics.
F. Catalina, C.N. Afonso, et al.
Journal of Materials Science
W. Lenth, C. Ortiz, et al.
Optics Communications
G.C. Bjorklund, W. Lenth, et al.
Proceedings of SPIE 1989
Bing Zhang, Kannan M. Krishnan, et al.
Ultramicroscopy