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Colossal topological Hall effect at the transition between isolated and lattice-phase interfacial skyrmions

Author

Listed:
  • M. Raju

    (Nanyang Technological University
    Johns Hopkins University)

  • A. P. Petrović

    (Nanyang Technological University)

  • A. Yagil

    (Department of Physics)

  • K. S. Denisov

    (Ioffe Institute)

  • N. K. Duong

    (Nanyang Technological University)

  • B. Göbel

    (Martin-Luther-Universität Halle-Wittenberg)

  • E. Şaşıoğlu

    (Martin-Luther-Universität Halle-Wittenberg)

  • O. M. Auslaender

    (Department of Physics
    NYU Langone Health)

  • I. Mertig

    (Martin-Luther-Universität Halle-Wittenberg)

  • I. V. Rozhansky

    (Ioffe Institute)

  • C. Panagopoulos

    (Nanyang Technological University)

Abstract

The topological Hall effect is used extensively to study chiral spin textures in various materials. However, the factors controlling its magnitude in technologically-relevant thin films remain uncertain. Using variable-temperature magnetotransport and real-space magnetic imaging in a series of Ir/Fe/Co/Pt heterostructures, here we report that the chiral spin fluctuations at the phase boundary between isolated skyrmions and a disordered skyrmion lattice result in a power-law enhancement of the topological Hall resistivity by up to three orders of magnitude. Our work reveals the dominant role of skyrmion stability and configuration in determining the magnitude of the topological Hall effect.

Suggested Citation

  • M. Raju & A. P. Petrović & A. Yagil & K. S. Denisov & N. K. Duong & B. Göbel & E. Şaşıoğlu & O. M. Auslaender & I. Mertig & I. V. Rozhansky & C. Panagopoulos, 2021. "Colossal topological Hall effect at the transition between isolated and lattice-phase interfacial skyrmions," Nature Communications, Nature, vol. 12(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-22976-6
    DOI: 10.1038/s41467-021-22976-6
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    Cited by:

    1. Peter Meisenheimer & Hongrui Zhang & David Raftrey & Xiang Chen & Yu-Tsun Shao & Ying-Ting Chan & Reed Yalisove & Rui Chen & Jie Yao & Mary C. Scott & Weida Wu & David A. Muller & Peter Fischer & Robe, 2023. "Ordering of room-temperature magnetic skyrmions in a polar van der Waals magnet," Nature Communications, Nature, vol. 14(1), pages 1-9, December.

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