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Author

Xingkai Cheng

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Open access Oct 2026

Atomic-scale spin sensing of a 2D d-wave altermagnet via helical tunneling.

Altermagnets simultaneously possess momentum-dependent nonrelativistic spin splitting and zero net magnetization (1-6). Their defining crystalline symmetry connects opposite-spin sublattices in real space and imposes alternating spin polarization on the symmetry-related electronic states in momentum space (1-3). Identi...

Zhu-Ying Wang, Shui-Kang Yu, Xing-Kai Cheng et al. · 2 citations
Preprint Aug 2026

Intrinsic anomalous Hall response in the bilayer kagome ferromagnet Co$_3$Sn

Transition-metal kagome magnets provide a rich platform for investigating the interplay between layer stacking, magnetic order, and band topology. Here, we report the molecular beam epitaxy and experimental investigation of high-quality thin films of the kagome metal Co$_3$Sn, which has not been synthesized in bulk for...

Yuqi Qin, Soumya Sankar, Xingkai Cheng et al. · 0 citations

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