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Showing 1–12 of 12 results
Advanced filters: Author: Licong Peng Clear advanced filters

  • Skyrmions, topological spin textures, have attracted interest for use in spin-based information processing. Here, Peng et al analyse the current driven motion of a single skyrmion at room temperature in a chiral-lattice magnet, tracking the motion using Lorentz transmission electron microscopy.

    • Licong Peng
    • Kosuke Karube
    • Xiuzhen Yu
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-7

  • Antiferromagnets have negligible stray magnetic fields and are robust against magnetic perturbations, making them ideal for high-density magnetic memory. However, these features make electrically switching the Néel vector challenging. Here, Guo, Lin and coauthors demonstrate layer-dependent electrical switching of a van der Waals antiferromagnet.

    • Haoran Guo
    • Zhongchong Lin
    • Zhaochu Luo
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-9

  • Photodetectors operating within scattering environment can be realized with anisotropic materials. Here, the authors report polarization sensitive photodetectors based on thin tellurium nanosheets with high photoresponsivity of 3.54 × 102 A/W, detectivity of ~3.01 × 109 Jones in the mid-infrared range and an anisotropic ratio of ∼8 for 2.3 μm illumination to ensure polarized imaging.

    • Lei Tong
    • Xinyu Huang
    • Weida Hu
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-10

  • Antiskyrmions, like skyrmions, are a form of topological spin texture, with a topological charge of opposite sign to the equivalent skyrmion with the same polarity. While antiskyrmions have been less explored, they offer some potential advantages for applications, and here, Guang et al demonstrate antiskyrmion motion within stripe domains.

    • Yao Guang
    • Xichao Zhang
    • Xiuzhen Yu
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-8

  • Skyrmions and antiskyrmions are nanometric spin whirls with opposite topological charges. In the Heusler magnet Mn1.4Pt0.9Pd0.1Sn, modulations of the orientation and strength of an in-plane magnetic field induces the transformation from antiskyrmions to non-topological bubbles and skyrmions.

    • Licong Peng
    • Rina Takagi
    • Yoshinori Tokura
    Research
    Nature Nanotechnology
    Volume: 15, P: 181-186

  • Experimental realizations of magnetic skyrmions, particle-like spin swirls with topological protection, so far have required inversion symmetry breaking or a geometrically frustrated lattice. In centrosymmetric GdRu2Si2, in which a geometrically frustrated lattice is absent, a skyrmion lattice phase emerges, which is probably stabilized by four-spin interactions mediated by itinerant electrons in the presence of easy-axis anisotropy.

    • Nguyen Duy Khanh
    • Taro Nakajima
    • Shinichiro Seki
    Research
    Nature Nanotechnology
    Volume: 15, P: 444-449

  • Understanding and controlling the skyrmion lattice (SkL) phase facilitates its versatile applications. Here the direct observation of a SkL phase with large topological Hall effect in centrosymmetric Gd3Ru4Al12 is reported, which is stabilized by thermal fluctuations and magnetic field without Dzyaloshinskii-Moriya interactions.

    • Max Hirschberger
    • Taro Nakajima
    • Yoshinori Tokura
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-9

  • Ac current-driven spin motions in helimagnetic metals can generate emergent electric fields acting on conduction electrons, leading to emergent electromagnetic induction (EEMI). In this study, we revealed that a short-period helimagnet Tb5Sb3 may have disordered spin helix structure and provides large EEMI.

    • Aki Kitaori
    • Jonathan S. White
    • Yoshinori Tokura
    ResearchOpen Access
    Communications Physics
    Volume: 7, P: 1-7