Characterization of epitaxially grown Fe-N films by sputter beam method

Abstract

Magnetic and Mössbauer studies of singlecrystal Fe16N2 and FeN martensite films epitaxially grown by molecular beam epitaxy (invited)

Fabrication of $\hbox{Fe}_{16}\hbox{N}_{2}$ Films by Sputtering Process and Experimental Investigation of Origin of Giant Saturation Magnetization in $\hbox{Fe}_{16}\hbox{N}_{2}$

“…per atom is considered as the limit and realized in the Fe Co alloy system at room temperature. This is far below the experimental claim (3.2 ) observed in the single-phase Fe N samples ( [4]), and in the sputteringbeam-prepared epitaxial samples (2.9 B/Fe) [22] as well as in the present results (2.93 B/Fe). It is also appealing to notice that in all these three experiments, the degree of N site ordering strongly affects the average magnetic moment of the Fe/N system.…”

Magnetic and electrical properties of iron nitride films containing both amorphous matrices and nanocrystalline grains

“…The magnetic properties are also changed by the nitrogen concentration in the iron nitride. For example, the saturation magnetizations of the a 0 -Fe x N (x $ 8; 4pM s ¼ 22 -24 kG) [6] and the a 00 -Fe 16 N 2 ð4pM s ¼ 28 -30 kGÞ [7] phases are higher than that of the a-Fe ð4pM s ¼ 21:6 kGÞ phase. The saturation magnetizations of the g 0 -Fe 4 N ð4pM s ¼ 18 -21 kGÞ [8] and the 1-Fe 3 N ð4pM s ¼ 16 -17 kGÞ [9] phases are lower than that of the a-Fe phase.…”

Size and nitrogen catalytic effects on the magnetic properties of Fe thin films

“…There is a continuous range of composition. 109 Epitaxial thin films of the α′ phase can be prepared directly by Molecular beam epitaxy (MBE), 110 reactive sputtering, 111 ion beam deposition, 112 or nitrogen ion implantation. 109 Prolonged annealing (tempering) of the α′ phase at about 370-420 K leads to an ordering of the nitrogen to produce α″-Fe 16 N 2 .…”

“…14 show three peaks at 44.3°, 64.6°, and 82.2°, corresponding to(110),(200), and(112) planes of α-Fe(N), respectively. According to the JCPDS-International diffraction database, the first three strongest peaks for pure α-Fe are at 44.8°, 65.2°, and 82.5°, respectively.…”