Xiaowen Chen, Dongsheng Song, Filipp N. Rybakov, Nikolai S. Kiselev, Long Li, Wen Shi, Rui Wu, Xuewen Fu, Olle Eriksson, Stefan Blügel, Rafal E. Dunin‐Borkowski, Haifeng Du, Fengshan Zheng. "Electric‐Current‐Assisted Nucleation of Zero‐Field Hopfion Rings." Advanced Materials, 2026. doi:10.1002/adma.202523417