Microstructure and magnetism in FeTaN films deposited in the nanocrystalline state

Abstract

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Magnetic properties and structural implications for nanocrystallineFe−Ti−Nthin films

“…% have been found to dissolve substitutionally into the bcc lattice with no substantial effect on the structure or magnetic properties. 3 Similar levels of substitution for these elements in the Fe-N system also appear to have little effect except for the enhanced thermal stability. This is one reason for the focus on Fe-Ti-N films in this work.…”

Microstructures and Soft Magnetic Properties of High Saturation Magnetization Fe-Co-N alloy Thin Films

“…Since the FeCo materials are highly magnetostrictive, it is reasonable to deduce that the FeCoN materials might also have a very high saturation magnetostriction from the former work on the FeMN systems [5,6]. Therefore, we measured the saturation magnetostriction constants, λ s,s , for the four films structures, and the measured results were also shown in Table 1.…”

“…In the last decade, huge amount of research was carried out on the soft magnetic FeMN alloy thin films, with the typical M being Al [5], Ta [6], Cr [7], etc., and the M composition being in the range of 0 ~ 10 at%. Enormous efforts are being spent on optimizing the microstructure and composition of these FeMN thin films materials, trying to get optimal soft magnetic properties.…”

Magnetically soft, high moment grain-refined Fe films: Application to magnetic tunnel junctions

“…The addition of a few percent nitrogen to iron can promote a lower coercivity and magnetostriction without significant reduction of saturation magnetization. [2][3][4][5] In this paper we use the microstructural and magnetic changes observed consequent upon N doping to soften magnetically the free Fe layer in Fe/ Al x O y / Fe magnetic tunnel junctions (MTJs).…”