F.J. Morvan
Chinese Academy of Sciences
8 Papers
16 Citations
F.J. Morvan is an academic researcher from Chinese Academy of Sciences. The author has contributed to research in topics: Skyrmion & Hysteresis. The author has an hindex of 5, co-authored 8 publications.
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Papers
A skyrmion-based spin-torque nano-oscillator with enhanced edge
Youhua Feng,Jing Xia,Lei Qiu,Xinran Cai,Xinran Cai,Laichuan Shen,F.J. Morvan,Xichao Zhang,Yan Zhou,Guoping Zhao,Guoping Zhao,Guoping Zhao +11 more
TL;DR: In this article, a modified nanodisk structure, in which a skyrmion can be driven by a large current density, is proposed, and numerical simulations demonstrate that when the edge of a ferromagnetic nanodisc has enhanced perpendicular magnetic anisotropy, the upper threshold of the skyrmmion oscillation frequency can be increased by 75% compared to the original structure without enhanced edge.
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Dynamics of antiskyrmions induced by the voltage-controlled magnetic anisotropy gradient
Lei Qiu,Jing Xia,Youhua Feng,Laichuan Shen,F.J. Morvan,Xichao Zhang,Xiaoxi Liu,Linhua Xie,Yan Zhou,Guoping Zhao +9 more
TL;DR: In this paper, the authors show that antiskyrmions can be effectively driven by the voltage-controlled magnetic anisotropy (VCMA) gradient in the presence of the anisotropic Dzyaloshinskii-Moriya interaction.
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Interface layer thickness dependence of magnetic properties of SmCo/Fe exchange-spring multilayers: An analytical micromagnetic approach
Qian Zhao,X.X. He,F.J. Morvan,Xuefeng Zhang,Guoping Zhao,Guoping Zhao,Zhu-bai Li,L.F. Li,Liu Yanli +8 more
TL;DR: In this article, the effect of the interface layer thickness on demagnetization progress was studied by an analytical micromagnetic approach, focusing on the effect on the interaction between the soft and hard layers.
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Change of coercivity mechanism with the soft film thickness in hard-soft trilayers
TL;DR: In this article, hysteresis loops and spin distributions have been obtained based on both three-dimensional and one-dimensional (1D) micromagnetic methods for SmCo/Fe to reveal the in-depth coercivity mechanism.
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The influence of interface anisotropy on demagnetization progress and magnetic properties in parallelly oriented hard/soft exchange-coupled multilayers
TL;DR: In this article, the effect of the interface anisotropy on the demagnetization progress and magnetic properties in Nd2Fe14B/α-Fe exchange-coupled multilayers with parallel crystalline anisotropic has been investigated within a micromagnetic framework.
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