Chirality-induced zigzag domain wall in in-plane magnetized ultrathin films
Chirality-induced zigzag domain wall in in-plane magnetized ultrathin films
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DOI：
10.1116/6.0001170
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发表时间：
2021-08
期刊：
影响因子：
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通讯作者：
Gong Chen;M. Robertson;H. Kwon;C. Won;A. Schmid;Kai Liu
中科院分区：
文献类型：
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作者：
Gong Chen;M. Robertson;H. Kwon;C. Won;A. Schmid;Kai Liu
用自旋极化低能电子显微术研究了面内磁化Fe/Ni/W（110）薄膜的畴结构。作为膜厚度的函数，观察到一种新的畴壁形状的转变，从一个类似的图案直的畴壁，这是由畴壁类型从面外手性壁到面内Néel壁的转变触发。提出了Dzyaloshinskiii-Moriya相互作用对畴壁能的贡献来解释畴壁形状的转变，并得到了蒙特-卡罗模拟的支持.
The domain structure in in-plane magnetized Fe/Ni/W(110) films is investigated using spin-polarized lowenergy electron microscopy. A novel transition of the domain wall shape from a zigzag-like pattern to straight is observed as a function of the film thickness, which is triggered by the transition of the domain wall type from out-of-plane chiral wall to in-plane Néel wall. The contribution of the Dzyaloshinskii-Moriya interaction to the wall energy is proposed to explain the transition of the domain wall shape, which is supported by Monte-Carlo simulations.