9 papers
Universal Right-Hand Chirality of Evanescent Vector Fields
Yilin Qing, Ji Zou, Yi-Pu Wang +2
A locking between propagation direction , spin , and surface or interface normal -- a phenomenon broadly termed \textit{chirality} -- pervad…
Non-Relativistic Spin-Orbit Interaction in Triplet Superconductors: Edelstein Effect and Spin Pumping by Electric Fields
Ping Li, G. A. Bobkov, I. V. Bobkova +1
Non-relativistic momentum-dependent spin splitting, as observed in collinear altermagnets and non-collinear -wave magnets, provides exciting avenues for controlling spin dynamic…
Frequency Comb of Electric-Polarization Waves
Xiyin Ye, Tao Yu
Frequency combs are a spectrum of equally spaced frequency components with very high time-frequency accuracy, which have been widely used in the optical and microwave frequency ran…
Pumping of spin supercurrent in unitary triplet superconductors
Ping Li, Tao Yu
One efficient mechanism for generating a charge supercurrent is Andreev reflection, in which the electric current injected from a normal metal into a conventional superconductor is…
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.…
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…
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…
Spin-orbit locking of magnons with localized microwave fields
Chengyuan Cai, Zubiao Zhang, Ji Zou +2
We address the photonic spin-orbit coupling known from nano-optics and plasmonics in the microwave regime. The spin and momentum of microwaves emitted by…
Spin Radiation of Electrons, Excitons, and Phonons
Chengyuan Cai, Tao Yu
In the celebrated Stern-Gerlach experiment an inhomogeneous static magnetic field separates a beam of charge-neutral atoms with opposite spins, thereby driving a ``spin current" no…