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Magnetic-Field-Assisted Diffusion Motion of Magnetic Skyrmions
ACS Nano ( IF 15.8 ) Pub Date : 2022-09-27 , DOI: 10.1021/acsnano.2c03046 Gang Qin 1 , Ruixuan Zhang 1 , Chendi Yang 1 , Xiaowei Lv 1 , Ke Pei 1 , Liting Yang 1 , Xianhu Liu 1 , Xuefeng Zhang 1 , Renchao Che 1
ACS Nano ( IF 15.8 ) Pub Date : 2022-09-27 , DOI: 10.1021/acsnano.2c03046 Gang Qin 1 , Ruixuan Zhang 1 , Chendi Yang 1 , Xiaowei Lv 1 , Ke Pei 1 , Liting Yang 1 , Xianhu Liu 1 , Xuefeng Zhang 1 , Renchao Che 1
Affiliation
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Studies of the diffusion dynamics of magnetic skyrmions have generated widespread interest in both fundamental physics and spintronics applications. Here we report the magnetic-field-assisted diffusion motion of skyrmions in a microstructured chiral FeGe magnet. We demonstrate the enhancement of diffusion motion of magnetic skyrmions that is manipulated and driven by an oscillatory magnetic field. Further, the directed diffusion of skyrmions is observed when an in-plane field was introduced to break the symmetry of the system. Finally, we demonstrate the application of a magnetic field can induce an arrangements transition of skyrmions assemble in microstructure, that is, from a stiff hexagonal lattice to a weak interactional isotropic state. By using a step-ascended magnetic field we finished the observation of a particle-like diffusive motion for magnetic skyrmions that transport from high-concentration regions to low-concentration regions and the diffusion flux is proportional to the concentration gradient followed Fick’s law.
中文翻译：
磁性 Skyrmions 的磁场辅助扩散运动
对磁性斯格明子扩散动力学的研究已经引起了对基础物理学和自旋电子学应用的广泛兴趣。在这里，我们报告了微结构手性 FeGe 磁体中斯格明子的磁场辅助扩散运动。我们展示了由振荡磁场操纵和驱动的磁性斯格明子扩散运动的增强。此外，当引入面内场以破坏系统的对称性时，可以观察到斯格明子的定向扩散。最后，我们证明了磁场的应用可以诱导在微观结构中组装的skyrmions的排列转变，即从刚性六方晶格到弱相互作用各向同性状态。
更新日期：2022-09-27
中文翻译：
磁性 Skyrmions 的磁场辅助扩散运动
对磁性斯格明子扩散动力学的研究已经引起了对基础物理学和自旋电子学应用的广泛兴趣。在这里，我们报告了微结构手性 FeGe 磁体中斯格明子的磁场辅助扩散运动。我们展示了由振荡磁场操纵和驱动的磁性斯格明子扩散运动的增强。此外，当引入面内场以破坏系统的对称性时，可以观察到斯格明子的定向扩散。最后，我们证明了磁场的应用可以诱导在微观结构中组装的skyrmions的排列转变，即从刚性六方晶格到弱相互作用各向同性状态。
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