Bulk defects induced coercivity modulation of Co thin film based on a Ta/Bi double buffer layer

•Significant regulation on coercivity of Co film is researched by defect engineering.•Based on a Ta/Bi double buffer layer, coercivity is tuned with the Bi diffusion.•Increment of bulk defect intensity in film enhances pinning strength on domain wall.•Magnetic anisotropy enhancement leads to the coe...

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Veröffentlicht in:	Journal of magnetism and magnetic materials 2020-04, Vol.500, p.166388, Article 166388
Hauptverfasser:	Xu, Xiulan, Feng, Guonan, Peng, Wenlin, Han, Gang, Yang, Chen, Jia, Yunlong, Guo, Risi, Xiong, Xiaodong, He, Xin, Luo, Junfeng, Hu, Qiang, Hu, Lang, Feng, Chun, Yu, Guanghua
Format:	Artikel
Sprache:	eng
Schlagworte:	Buffer layers Bulk density Cobalt thin film Coercive field Coercivity Crystal defects Crystallization Defect Diffusion barriers Diffusion layers Electrons Magnetic domains Magnetic properties Microstructures Nucleation Photoelectrons Positron annihilation Spectrum analysis Thin films X ray photoelectron spectroscopy
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