3 papers
cond-mat.mes-hall2025
Transverse and Unidirectional Spin Pumping
Ping Li, Chengyuan Cai, Tao Yu
Conventional spin pumping, driven by magnetization dynamics, is longitudinal since the pumped spin current flows normal to the interface between the ferromagnet and the conductor.…
cond-mat.mes-hall2025
Directional entanglement of spin-orbit locked nitrogen-vacancy centers by magnons
Zhiping Xue, Ji Zou, Chengyuan Cai +2
We address that the stray magnetic field emitted by the excited quantum states of the nitrogen-vacancy (NV) centers is spin-momentum locked, such that the spin transfer to nearby f…
cond-mat.mes-hall2025
Evanescent Orbital Pumping by Magnetization Dynamics Free of Spin-Orbit Coupling
Chengyuan Cai, Hanchen Wang, Tao Yu
Converting magnetization spin to orbital current often relies on strong spin-orbit interaction that may cause additional angular momentum dissipation. We report that coherent magne…