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<p>Magnetic skyrmions hold great promise as information carriers in spintronics, yet their practical implementation is impeded by the skyrmion Hall effect (SkHE). Combining symmetry analysis, first-principles calculations, and atomic spin simulations, we demonstrate hybrid skyrmions in the multiferroic monolayer TcIrGe<sub>2</sub>Se<sub>6</sub>. It hosts a mixed Dzyaloshinskii-Moriya interaction (DMI) containing both parallel and perpendicular components. This unique DMI stabilizes hybrid skyrmions exhibiting a nearly vanishing skyrmion Hall angle, thereby suppressing the SkHE. Benefiting from strong DMI and high Curie temperature (330 K), these hybrid skyrmions maintain stable across a wide temperature and magnetic field range. The intrinsic magnetoelectric coupling enables electrical control of skyrmion chirality and current-driven motion through ferroelectric switching, while strain engineering permits continuous helicity modulation and induces a topological transition to bimerons. Our work establishes TcIrGe<sub>2</sub>Se<sub>6</sub> as a promising platform for hybrid skyrmions and provides a multimodal control scheme, integrating electrical switching for chirality and strain engineering for helicity.</p>

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Hybrid magnetic skyrmions with near-zero Hall angle and electrical switchability in a 2D multiferroic

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年3月3日

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  • Xuhong Li,
  • Mo Zhou,
  • Yongteng Wei,
  • Tengfei Cao,
  • Xiaoli Fan

摘要

Magnetic skyrmions hold great promise as information carriers in spintronics, yet their practical implementation is impeded by the skyrmion Hall effect (SkHE). Combining symmetry analysis, first-principles calculations, and atomic spin simulations, we demonstrate hybrid skyrmions in the multiferroic monolayer TcIrGe2Se6. It hosts a mixed Dzyaloshinskii-Moriya interaction (DMI) containing both parallel and perpendicular components. This unique DMI stabilizes hybrid skyrmions exhibiting a nearly vanishing skyrmion Hall angle, thereby suppressing the SkHE. Benefiting from strong DMI and high Curie temperature (330 K), these hybrid skyrmions maintain stable across a wide temperature and magnetic field range. The intrinsic magnetoelectric coupling enables electrical control of skyrmion chirality and current-driven motion through ferroelectric switching, while strain engineering permits continuous helicity modulation and induces a topological transition to bimerons. Our work establishes TcIrGe2Se6 as a promising platform for hybrid skyrmions and provides a multimodal control scheme, integrating electrical switching for chirality and strain engineering for helicity.