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Metastable solitonic states in the strained itinerant helimagnet FeGe

机译:紧张的溜射Helimagnet中的亚稳态孤子状态

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摘要

Tensile strain is a promising tool for the creation and manipulation of magnetic solitonic textures in chiral helimagnets via tunable control of magnetic anisotropy and Dzyaloshinskii-Moriya interaction. Here, by using in situ resonant small-angle x-ray scattering, we demonstrate that skyrmion and chiral soliton lattices can be achieved as metastable states in FeGe lamella as distinct states under tensile strain and magnetic fields in various orientations with respect to the deformation. The small-angle scattering data can be well accounted for in the framework of the analytical model for a soliton lattice. By using the experimental results and analytical theory, the unwinding of metastable skyrmions in a perpendicular magnetic field as shown by a small-angle scattering experiment was analyzed via micromagnetic simulation.
机译:拉伸菌株是通过可调谐控制磁各向异性和Dzyaloshinskii-Moriya相互作用的手性永恒因子在手性直升机中产生和操纵手性棒纹理的有希望的工具。这里,通过使用原位共振小角X射线散射,我们证明了Skyrmion和手性孤子格子可以作为FEGE薄片中的亚稳态作为不同状态下的不同状态,并且各种取向的磁场相对于变形。在孤子晶格的分析模型的框架中,可以很好地占用小角度散射数据。通过使用实验结果和分析理论,通过微磁性模拟分析如小角度散射实验所示的垂直磁场中旋转次幂的展开。

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  • 来源
    《Physical review》 |2020年第1期|014416.1-014416.10|共10页
  • 作者单位

    RIKEN Center for Emergent Matter Science (CEMS) Wako 351-0198 Japan Laboratory for Neutron Scattering and Imaging (LNS) Paul Scherrer Institute (PSI) CH-5232 Villigen Switzerland;

    RIKEN Center for Emergent Matter Science (CEMS) Wako 351-0198 Japan Research and Services Division of Materials Data and Integrated System (MaDIS) National Institute for Materials Science (NIMS) Tsukuba 305-0047 Japan PRESTO Japan Science and Technology Agency (JST) Kawaguchi 332-0012 Japan;

    Petersburg Nuclear Physics Institute NRC 'Kurchatov Institute ' Gatchina Saint-Petersburg 188300 Russia St. Petersburg State University 7/9 Universitetskaya nab. St. Petersburg 199034 Russia St. Petersburg Academic University-Nanotechnology Research and Education Centre of the Russian Academy of Sciences 194021 St. Petersburg Russia;

    RIKEN Center for Emergent Matter Science (CEMS) Wako 351-0198 Japan Institute of Industrial Science The University of Tokyo Tokyo 1538505 Japan;

    Department of Applied Physics and Quantum-Phase Electronics Center (QPEC) University of Tokyo Tokyo 113-8656 Japan;

    Synchrotron SOLEIL Saint-Aubin Boite Postale 48 91192 Gif-sur-Yvette Cedex France;

    Condensed Matter Research Center and Photon Factory Institute of Materials Structure Science High Energy Accelerator Research Organization Tsukuba 305-0801 Japan;

    RIKEN Center for Emergent Matter Science (CEMS) Wako 351-0198 Japan Department of Applied Physics University of Tokyo Tokyo 113-8656 Japan Tokyo College University of Tokyo Tokyo 113-8656 Japan;

    RIKEN Center for Emergent Matter Science (CEMS) Wako 351-0198 Japan Department of Advanced Materials Science University of Tokyo Kashiwa 277-8561 Japan;

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