Introducing topologically protected skyrmions in graphene holds significant importance for developing high-speed, low-energy spintronic devices. Here, we present a centrosymmetric ferromagnetic graphene/trilayer Cr2Ge2Te6/graphene heterostructure, demonstrating the anomalous and topological Hall effect due to the magnetic proximity effect. Through gate voltage control, we effectively tune the emergence and size of skyrmions. Micromagnetic simulations reveal the formation of skyrmions and antiskyrmions, which respond differently to external magnetic fields, leading to oscillations in the topological Hall signal. Our findings provide a novel pathway for the formation and manipulation of skyrmions in centrosymmetric two-dimensional magnetic systems, offering significant insights for developing topological spintronics.
@article{arxiv.2503.07093,
title = {Anomalous Meets Topological Hall Effect in Cr2Ge2Te6 Heterostructures},
author = {Xiaofan Cai and Yaqing Han and Jiawei Jiang and Renjun Du and Di Zhang and Jiabei Huang and Siqi Jiang and Jingkuan Xiao and Zihao Wang and Qian Guo and Wanting Xu and Fuzhuo Lian and Siqing Wang and Bingxian Ou and Yongqiang Yang and Kenji Watanabe and Takashi Taniguchi and Alexander S. Mayorov and Konstantin S. Novoselov and Baigeng Wang and Kai Chang and Hongxin Yang and Lei Wang and Geliang Yu},
journal= {arXiv preprint arXiv:2503.07093},
year = {2025}
}
Comments
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