首页|Phase evolution and magnetic properties of a Co-rich multi-component magnetic nanocomposite film
Phase evolution and magnetic properties of a Co-rich multi-component magnetic nanocomposite film
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NSTL
Elsevier
? 2022 Elsevier B.V.The effect of annealing on the chemical partitioning, microstructural evolution, and magnetic properties of a magnetron sputter deposited Co-2.8Fe-2.7Mn-3.5-Nb-2.4Si-7.2B (at%) alloy was investigated using transmission electron microscopy, atom probe tomography, and vibrating-sample magnetometry. While no crystallinity was observed in the as-deposited film, nonideal mixing in this amorphous state was noted by the Mn enrichment around the film's ~ 7 nm diameter columnar morphology that spanned the thickness of the film parallel to the growth direction. Following annealing at 520 °C for either 5 min or 20 min, the columnar morphology transformed to a partially crystallised microstructure with Co and Fe enriching 7.0 ± 1.4 nm crystallites encased by an amorphous region enriched with Nb, B, Si, and Mn. The magnetic coercivity, ~ 26 Oe, was invariant upon annealing while the saturation magnetisation increased from 828 to 953 emu/cm3.
Atom probe tomographyIn-situ annealingMagnetron sputteringSoft magnetic nanocompositesTransmission electron microscopy
Mewes C.、Leary A.M.、Noebe R.D.、Tweddle D.、Koenig A.、Thompson G.B.、Nakarmi P.、Mewes T.
展开 >
Department of Physics and Astronomy The University of Alabama
Materials and Structures Division NASA Glenn Research Center
Department of Metallurgical and Materials Engineering The University of Alabama
NSTL
Elsevier
