Heng Niu

2 weeks ago | nature.com | Heng Niu |Bingfeng Miao |Liang Sun |Yizheng Wu |Andreas Schmid |Kai Liu | +2 more

AbstractMagnetic skyrmionic structures, including magnetic skyrmions and antiskyrmions, are characterized by swirling spin textures with non-trivial topologies. They are featured with specific topological charges, Q, which are of crucial importance in determining their topological properties. Owing to the invariance of the chiral nature, it is generally believed that Q is conserved in a given magnetic skyrmionic structure and is hard to alter.

Nov 25, 2024 | nature.com | Heng Niu |Tianping Ma |Colin Ophus |Bingfeng Miao |Liang Sun |Yizheng Wu | +4 more

AbstractThe Dzyaloshinskii-Moriya antisymmetric exchange interaction (DMI) stabilises topological spin textures with promising future spintronics applications. According to crystal symmetry, the DMI can be categorized as four different types that favour different chiral textures. Unlike the other three extensively-investigated types, out-of-plane DMI, as the last type that favours in-plane chirality, remained missing so far.

Apr 13, 2024 | nature.com | Liang Sun |Jun Cheng |Heng Niu |Gong Chen |Bingfeng Miao |Xiangrong Wang

AbstractYttrium iron garnet, a material possessing ultralow magnetic damping and extraordinarily long magnon diffusion length, is the most widely studied magnetic insulator in spintronics and magnonics. Field-free electrical control of perpendicular yttrium iron garnet magnetization with considerable efficiency is highly desired for excellent device performance.