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    Current-Induced Helicity Reversal of a Single Skyrmionic Bubble Chain in a Nanostructured Frustrated Magnet.

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    Type
    Article
    Authors
    Hou, Zhipeng
    Zhang, Qiang cc
    Zhang, Xichao
    Xu, Guizhou
    Xia, Jing
    Ding, Bei
    Li, Hang
    Zhang, Senfu cc
    Batra, Nitin M cc
    Da Costa, Pedro M. F. J. cc
    Liu, Enke
    Wu, Guangheng
    Ezawa, Motohiko
    Liu, Xiaoxi
    Zhou, Yan
    Zhang, Xixiang cc
    Wang, Wenhong cc
    KAUST Department
    Imaging and Characterization Core Lab
    Material Science and Engineering Program
    Nanofabrication Core Lab
    Physical Science and Engineering (PSE) Division
    Thin Films & Characterization
    KAUST Grant Number
    CRF-2015-2549-CRG4
    CRF-2016-CRG5-2977
    Date
    2019-11-20
    Online Publication Date
    2019-11-20
    Print Publication Date
    2020-01
    Embargo End Date
    2020-11-21
    Permanent link to this record
    http://hdl.handle.net/10754/660199
    
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    Abstract
    Helicity indicates the in-plane magnetic-moment swirling direction of a skyrmionic configuration. The ability to reverse the helicity of a skyrmionic bubble via purely electrical means has been predicted in frustrated magnetic systems; however, it has been challenging to observe this experimentally. The current-driven helicity reversal of the skyrmionic bubble in a nanostructured frustrated Fe3 Sn2 magnet is experimentally demonstrated. The critical current density required to trigger the helicity reversal is 109 -1010 A m-2 , with a corresponding pulse-width varying from 1 µs to 100 ns. Computational simulations reveal that both the pinning effect and dipole-dipole interaction play a crucial role in the helicity reversal process.
    Citation
    Hou, Z., Zhang, Q., Zhang, X., Xu, G., Xia, J., Ding, B., … Wang, W. (2019). Current-Induced Helicity Reversal of a Single Skyrmionic Bubble Chain in a Nanostructured Frustrated Magnet. Advanced Materials, 1904815. doi:10.1002/adma.201904815
    Sponsors
    Z.P.H., Q.Z., and X.Z. contributed equally to this work. This work was supported by the National Key R&D Program of China (Grant No. 2017YFA0303202), the National Natural Science Foundation of China (Grant Nos. 11574137, 11604148, 11874410, 11974298, and 61961136006), the King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under Award No. CRF-2015-2549-CRG4 and No. 2016-CRG5-2977, the Presidential Postdoctoral Fellowship and President's Fund of CUHKSZ, Longgang Key Laboratory of Applied Spintronics, the Shenzhen Fundamental Research Fund (Grant No. JCYJ20170410171958839), Shenzhen Peacock Group Plan (Grant No. KQTD20180413181702403), the Key Research Program of the Chinese Academy of Sciences (Grant No. KJZD-SW-M01), the Grants-in-Aid for Scientific Research from JSPS KAKENHI (Grant Nos. JP18H03676, JP17K05490, JP15H05854 and JP17K19074), and CREST, JST (Grant Nos. JPMJCR1874 and JPMJCR16F1).
    Publisher
    Wiley
    Journal
    Advanced materials
    DOI
    10.1002/adma.201904815
    Additional Links
    https://onlinelibrary.wiley.com/doi/abs/10.1002/adma.201904815
    ae974a485f413a2113503eed53cd6c53
    10.1002/adma.201904815
    Scopus Count
    Collections
    Nanofabrication Core Lab; Articles; Imaging and Characterization Core Lab; Physical Science and Engineering (PSE) Division; Material Science and Engineering Program

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