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Influence of modulated structure on magnetic properties of NdFeB/Co multilayer thin films

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Abstract

The NdFeB/Co multilayer films were prepared by magnetron sputtering. After that, the samples were annealed at 600 °C for 20 min. The surface morphology, phase structures and magnetic properties of Mo (50 nm)/[NdFeB (100 nm)/Co(y)]×10/Mo (50 nm) thin films were researched by AFM, XRD and VSM, respectively. The results show that the films show stronger perpendicular magnetic anisotropy. When the thickness of Co layers is 10 nm, the coercivity H c⊥ is the maximum, 295 kA/m. However, for y=10-20, the reduced remanence M/M s of films has increased. When the thickness of Co layers is 20-30 nm, the NdFeB/Co multilayer films obtained more superior magnetic properties with M/M s =0.95.

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Authors and Affiliations

  1. College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China

    Yu-dong Fu  (傅宇东), Shi-yang Wang  (王诗阳), Xiao-shuo Zhu  (朱小硕), Bo Fang  (方博) & Feng Yan  (闫峰)

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  1. Yu-dong Fu  (傅宇东)
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  2. Shi-yang Wang  (王诗阳)
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  3. Xiao-shuo Zhu  (朱小硕)
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  5. Feng Yan  (闫峰)
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Correspondence to Yu-dong Fu  (傅宇东).

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Fu, Yd., Wang, Sy., Zhu, Xs. et al. Influence of modulated structure on magnetic properties of NdFeB/Co multilayer thin films. J. Cent. South Univ. 22, 3282–3286 (2015). https://doi.org/10.1007/s11771-015-2867-1

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  • DOI: https://doi.org/10.1007/s11771-015-2867-1

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