Magnetic vortex with skyrmionic core in a thin nanodisk of chiral magnets
Magnetic vortex with skyrmionic core in a thin nanodisk of chiral magnets
复制标题
手性磁体薄纳米盘中具有斯格明离子核心的磁涡流
DOI：
10.1209/0295-5075/101/37001
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发表时间：
2012-10
期刊：
影响因子：
1.8
通讯作者：
Zhang Yuheng
中科院分区：
文献类型：
--
作者：
Du Haifeng;Ning Wei;Tian Mingliang;Zhang Yuheng
利用微磁学方法和MonteCarlo模拟，在具有Dzyaloshinskiii-Moriya相互作用和单轴各向异性的手征磁体薄纳米盘中获得了一种具有Skyrmionic核和一系列圆形自旋条纹的涡旋自旋织构.通过控制圆盘的大小，可以连续地调节Skyrmionic核心的大小。此外，对于某些大小的盘，这个涡旋态可能是一个自发的基态，即使没有外部磁场和热涨落的帮助。此外，单轴各向异性能够稳定这种涡旋自旋织构。我们预期，目前的工作将激发进一步的实验研究探索自旋结构。
A type of vortex spin texture with skyrmionic core and a series of circle spin stripes were obtained in a thin nanodisk of the chiral magnets with Dzyaloshinskii-Moriya interaction and uniaxial anisotropy by means of the micromagnetic approach and Monte Carlo simulation. The size of the skyrmionic core can be modulated continuously by controlling the disk size. Moreover, for some values of the disk size, this vortex state may be a spontaneous ground state even without the help of the external magnetic field and thermal fluctuations. In addition, the-uniaxial anisotropy is able to stabilize this vortex spin texture. We anticipate that the present work will inspire further experimental studies for exploring the spin structure.