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Phosphor doping enhanced c -axis alignment and exchange decoupling of sputtered Co-Pt perpendicular thin films

Abstract : In the present work, Co-23.0 at. % Pt and Co-23.0 at. % Pt-3.67 at. % P thin films with their c-axis perpendicular to the substrate surface were fabricated on a glass substrate by DC magnetron sputtering. X-ray diffraction and transmission electron microscopic analyses demonstrate that the doping of P improves the c-axis alignment and forms P-rich non-magnetic phase at grain boundary areas, the latter resulting in inter-granular exchange decoupling between Co-Pt grains. The improved c-axis alignment and the inter-granular exchange decoupling give rise to the increase of the out of plane coercivity and the squareness of the Co-Pt-P films.
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https://hal.univ-lorraine.fr/hal-03080451
Contributor : Yudong Zhang Connect in order to contact the contributor
Submitted on : Thursday, December 17, 2020 - 4:58:28 PM
Last modification on : Wednesday, November 3, 2021 - 9:00:27 AM

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Bo Yang, Gaowu Qin, Na Xiao, Zongbin Li, Y. D. Zhang, et al.. Phosphor doping enhanced c -axis alignment and exchange decoupling of sputtered Co-Pt perpendicular thin films. Journal of Applied Physics, American Institute of Physics, 2016, 119 (14), pp.145304. ⟨10.1063/1.4945580⟩. ⟨hal-03080451⟩

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