Ultrafast spintronics with geometric effects in nonadiabatic wave-packet dynamicsRemoveMatisse Wei-Yuan Tu, Li-Sheng Lin, Chung-Yu Wang, Jyh-Pin Chou, Sin-Yi Wei, Chien-Ming Tu, Chia-Nung Kuo, Chin Shan Lue, and Chih-Wei LuoPhys. Rev. B 112, 035417 (2025)