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Unconventional spin-orbit torque in transition metal dichalcogenide/ferromagnet bilayers from first-principles calculations
Fei Xue, Christoph Rohmann, Junwen Li +2
Motivated by recent observations of unconventional out-of-plane dampinglike torque in \ch{WTe2}/Permalloy bilayer systems, we calculate the spin-orbit torque generated in two-dimen…
Intrinsic spin currents in ferromagnets
V. P. Amin, Junwen Li, M. D. Stiles +1
First principles calculations show that electric fields applied to ferromagnets generate spin currents flowing perpendicularly to the electric field. Reduced symmetry in these ferr…
Optical spin transfer and spin-orbit torques in thin film ferromagnets
Junwen Li, Paul M. Haney
We study the optically induced torques in thin film ferromagnetic layers under excitation by circularly polarized light. We study cases both with and without Rashba spin-orbit coup…
Interfacial magnetic anisotropy from a 3-dimensional Rashba substrate
Junwen Li, Paul M. Haney
We study the magnetic anisotropy which arises at the interface between a thin film ferromagnet and a 3-d Rashba material. The 3-d Rashba material is characterized by the spin-orbit…
Optical Spintronics in Organic-Inorganic Perovskite Photovoltaics
Junwen Li, Paul M. Haney
Organic-inorganic halide CHNHPbI solar cells have attracted enormous attention in recent years due to their remarkable power conversion efficiency. When inversion symme…
Graphene quantum dots embedded in hexagonal boron nitride sheets
Junwen Li, Vivek B. Shenoy
We have carried out first-principles calculations on electronic properties of graphene quantum dots embedded in hexagonal boron nitride monolayer sheets. The calculations with dens…