自旋电子学
凝聚态物理
微晶
材料科学
磁化
纳米尺度
磁强计
磁力显微镜
纳米技术
反铁磁性
自旋(空气动力学)
微电子
磁场
铁磁性
物理
量子力学
热力学
冶金
作者
Senlei Li,Mengqi Huang,Hanyi Lu,Nathan McLaughlin,Yuxuan Xiao,Jingcheng Zhou,Eric E. Fullerton,Hua Chen,Hailong Wang,Chunhui Du
出处
期刊:Nano Letters
[American Chemical Society]
日期:2023-05-23
卷期号:23 (11): 5326-5333
被引量:3
标识
DOI:10.1021/acs.nanolett.3c01523
摘要
Noncollinear antiferromagnets with novel magnetic orders, vanishingly small net magnetization, and exotic spin related properties hold enormous promise for developing next-generation, transformative spintronic applications. A major ongoing research focus of this community is to explore, control, and harness unconventional magnetic phases of this emergent material system to deliver state-of-the-art functionalities for modern microelectronics. Here we report direct imaging of magnetic domains of polycrystalline Mn3Sn films, a prototypical noncollinear antiferromagnet, using nitrogen-vacancy-based single-spin scanning microscopy. Nanoscale evolution of local stray field patterns of Mn3Sn samples are systematically investigated in response to external driving forces, revealing the characteristic "heterogeneous" magnetic switching behaviors in polycrystalline textured Mn3Sn films. Our results contribute to a comprehensive understanding of inhomogeneous magnetic orders of noncollinear antiferromagnets, highlighting the potential of nitrogen-vacancy centers to study microscopic spin properties of a broad range of emergent condensed matter systems.
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