Journal of Applied Physics · 1997 · 13 citations · 11 references
Natural SciencesMaterials EngineeringMaterials ScienceMagnetic MaterialsMaterials CharacterizationThin FilmsFerromagnetic MaterialsFerromagnetismMagnetic CharacterizationMagnetic Recording MaterialsMagnetic Thin FilmsThin Film Magnetic PropertiesDiffraction PatternsMagnetic Materials CharacterizationMagnetic PropertiesMagnetostrictionMultilayer Magnetic FilmsSaturation MagnetizationThin Film FerromagnetsX-ray Diffraction Analysis
In this article, the structure and soft magnetic properties of [FeTaN/TaN]n multilayers have been studied. Best multilayer films have coercivity of 1.2 Oe, which is further decreased to 0.5 Oe by annealing up to 400 °C. The saturation magnetization is 19.5 kG. The initial permeability of multilayer films is 1200 and is constant up to 100 MHz. A predominant α-Fe(110) texture is observed by x-ray diffraction patterns and Mössbauer spectra (MS), but a small amount of ferromagnetic ε-FexN (x⩾3) and paramagnetic ε-FexN (2<x<3) phases are identified by MS, which may account for the relatively large magnetostriction (∼5×10−6). The temperature dependence of MS and x ray show good thermal stability up to 430 °C.
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