几何形态对铁纳米环磁特性的影响
Effect of Geometry on Magnetic Properties of Fe Nanorings
DOI: 10.12677/CMP.2020.92003, PDF,    科研立项经费支持
作者: 吴宇晗, 胡志伟, 叶心耕, 程 霞, 林心怡, 成寒钰, 张鑫源, 叶晴莹：福建师范大学，物理与能源学院，福建 福州
关键词: Monte Carlo方法；快速傅立叶变换微磁学方法；铁纳米环；磁特性；Monte Carlo Method； FFTM； Fe Nanoring； Magnetic Property
摘要: 本文采用Monte Carlo方法，对铁纳米环的磁化动力学进行模拟。研究发现，铁纳米环的几何条件会影响到铁纳米环的磁化行为，同时，外场的变化会导致铁纳米环在磁化过程中出现不同的自旋组态，如洋葱态、涡旋态和反向洋葱态等。进一步的研究发现，铁纳米环涡旋态的稳定性及过渡态的数量与系统的内外半径明显相关。
Abstract: Base on Monte Carlo method, the magnetic dynamics properties of Fe nanorings are studied. The study found that the magnetization behaviors of Fe nanorings are influenced by their geometry. At the same time, the change of the external field will lead to different spin configurations of the Fe nanoring in the magnetization process, such as onion-type-states, vortex-type-states and re-verse onion-type-states, and so on. Further study shows that the stability of the vor-tex-type-states and the number of transition states of the Fe nanoring are significantly related to the inner and outer radius of the system.
文章引用：吴宇晗, 胡志伟, 叶心耕, 程霞, 林心怡, 成寒钰, 张鑫源, 叶晴莹. 几何形态对铁纳米环磁特性的影响[J]. 凝聚态物理学进展, 2020, 9(2): 20-25. https://doi.org/10.12677/CMP.2020.92003

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