5 papers
Multipolar orbital relaxation of the states
Aurélien Manchon, Xiaobai Ning, Chi Sun +3
Using a nonperturbative approach, the relaxation rate of orbital dipolar and quadrupolar moments is computed analytically for the t2g states. In the presence of short-range impurit…
Single-shot optical precessional magnetization switching of Pt/Co/Pt ferromagnetic trilayers
Rui Xu, Chen Xiao, Xiangyu Zheng +9
Ultra-fast magnetization switching triggered by a single femtosecond laser pulse has gained significant attention over the last decade for its potential in low-power consumption, h…
Giant Orbital Torque-driven Picosecond Switching in Magnetic Tunnel Junctions
Yuxuan Yao, Chen Xiao, Xiaobai Ning +18
Orbital Hall effect was recently discovered as a novel pathway for driving magnetic moment. However, the integration of orbital Hall effect in magnetic memories suffers from low or…
Phenomenology of orbital torque, pumping and mixing conductance in metallic bilayers
Xiaobai Ning, Henri Jaffrès, Weisheng Zhao +1
The conversion between spin and orbital currents is at the origin of the orbital torque and its Onsager reciprocal, the orbital pumping. Here, we propose a phenomenological model t…
Orbital diffusion, polarization and swapping in centrosymmetric metals
Xiaobai Ning, A. Pezo, Kyoung-Whan Kim +3
We propose a general theory of charge, spin, and orbital diffusion based on Keldysh formalism. Our findings indicate that the diffusivity of orbital angular momentum in metals is m…