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Magnetostatic twists in room-temperature skyrmions explored by nitrogen-vacancy center spin texture reconstruction

Author

Listed:
  • Y. Dovzhenko

    (Harvard University)

  • F. Casola

    (Harvard University
    Harvard-Smithsonian Center for Astrophysics)

  • S. Schlotter

    (Harvard University
    Massachusetts Institute of Technology)

  • T. X. Zhou

    (Harvard University
    Harvard University)

  • F. Büttner

    (Massachusetts Institute of Technology)

  • R. L. Walsworth

    (Harvard University
    Harvard-Smithsonian Center for Astrophysics)

  • G. S. D. Beach

    (Massachusetts Institute of Technology)

  • A. Yacoby

    (Harvard University)

Abstract

Magnetic skyrmions are two-dimensional non-collinear spin textures characterized by an integer topological number. Room-temperature skyrmions were recently found in magnetic multilayer stacks, where their stability was largely attributed to the interfacial Dzyaloshinskii–Moriya interaction. The strength of this interaction and its role in stabilizing the skyrmions is not yet well understood, and imaging of the full spin structure is needed to address this question. Here, we use a nitrogen-vacancy centre in diamond to measure a map of magnetic fields produced by a skyrmion in a magnetic multilayer under ambient conditions. We compute the manifold of candidate spin structures and select the physically meaningful solution. We find a Néel-type skyrmion whose chirality is not left-handed, contrary to preceding reports. We propose skyrmion tube-like structures whose chirality rotates through the film thickness. We show that NV magnetometry, combined with our analysis method, provides a unique tool to investigate this previously inaccessible phenomenon.

Suggested Citation

  • Y. Dovzhenko & F. Casola & S. Schlotter & T. X. Zhou & F. Büttner & R. L. Walsworth & G. S. D. Beach & A. Yacoby, 2018. "Magnetostatic twists in room-temperature skyrmions explored by nitrogen-vacancy center spin texture reconstruction," Nature Communications, Nature, vol. 9(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-05158-9
    DOI: 10.1038/s41467-018-05158-9
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    Cited by:

    1. W. S. Huxter & M. L. Palm & M. L. Davis & P. Welter & C.-H. Lambert & M. Trassin & C. L. Degen, 2022. "Scanning gradiometry with a single spin quantum magnetometer," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    2. Roméo Juge & Naveen Sisodia & Joseba Urrestarazu Larrañaga & Qiang Zhang & Van Tuong Pham & Kumari Gaurav Rana & Brice Sarpi & Nicolas Mille & Stefan Stanescu & Rachid Belkhou & Mohamad-Assaad Mawass , 2022. "Skyrmions in synthetic antiferromagnets and their nucleation via electrical current and ultra-fast laser illumination," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    3. Peter Meisenheimer & Guy Moore & Shiyu Zhou & Hongrui Zhang & Xiaoxi Huang & Sajid Husain & Xianzhe Chen & Lane W. Martin & Kristin A. Persson & Sinéad Griffin & Lucas Caretta & Paul Stevenson & Ramam, 2024. "Switching the spin cycloid in BiFeO3 with an electric field," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    4. Rugang Geng & Adrian Mena & William J. Pappas & Dane R. McCamey, 2023. "Sub-micron spin-based magnetic field imaging with an organic light emitting diode," Nature Communications, Nature, vol. 14(1), pages 1-8, December.

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