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Coercivity mechanism and long-range coupling of anisotropic Nd-Dy-Fe-Co-B/Fe composite thick film
Journal of Alloys and Compounds ( IF 6.2 ) Pub Date : 2023-06-01 , DOI: 10.1016/j.jallcom.2023.170816
C.H. Li, X.T. Zhao, L. Liu, W. Liu, Z.X. Ye, J.X. Wu, Y. Li, J. Ma, H.Z. Ju, Y.H. Song, Z.D. Zhang

In the present work, the long-range coupling between soft- and hard-magnetic layers and a dual enhancement of coercivity and polarization are achieved in anisotropic Nd-Dy-Fe-Co-B/Fe composite thick film with Ta spacer layers. It has been found that the coercivity mechanism dominated by the pinning mechanism is enhanced with increasing the period number of multilayers. The effect of the Ta spacer layer isolating the hard-magnetic phase grains leads to an increase in the coercivity. Continuous irreversible distribution confirms the coherent reversal of the soft and hard phases. The increase of polarization is caused by the dipole interactions acting in the long-range couplings between the layers.



中文翻译:

各向异性Nd-Dy-Fe-Co-B/Fe复合厚膜的矫顽力机理及长程耦合

在目前的工作中,在具有 Ta 间隔层的各向异性 Nd-Dy-Fe-Co-B/Fe 复合厚膜中实现了软磁层和硬磁层之间的远程耦合以及矫顽力和极化的双重增强。已经发现,随着多层周期数的增加,以钉扎机制为主的矫顽力机制得到增强。Ta间隔层隔离硬磁相晶粒的作用导致矫顽力增加。连续不可逆分布证实了软相和硬相的相干反转。极化的增加是由层间长程耦合中的偶极子相互作用引起的。

更新日期:2023-06-02
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