Preprint
Oct 2026
Finite-Momentum Antiferromagnetic Magnon Dynamics across the Morin Transition in Hematite
Hematite ($\alpha$-Fe$_2$O$_3$) is a prototypical antiferromagnetic platform for high-speed spintronics and magnonics, yet its finite-momentum magnon dynamics and spin-reorientation mechanism remain incompletely understood. Here we use low-wavenumber magneto-Raman spectroscopy to resolve both $k=0$ and finite-$k$ sub-t...
Jia-Qi Gong, Yuan-Zhe Tian, Jun Cui et al.
· 0 citations