Tianping Ma

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 29, 2024 | link.aps.org | Tong Wu |Haoran Chen |Tianping Ma |Jia Xu

Efficient control of antiferromagnetic (AFM) domain switching in thin films is vital for advancing antiferromagnet-based memory devices. In this study, we directly observed the current-driven switching process of CoO AFM domains in the Pt/CoO(001) bilayer through the magneto-optical birefringence effect.