Bilayer

Quantum mechanics

Magnetic field

Spin (aerodynamics)

Engineering

Pure mathematics

Magnetization

Biology

Materials science

Permalloy

Ferromagnetism

Field (mathematics)

Electric field

Mechanical engineering

Genetics

Thermodynamics

Physics

Torque

Membrane

Mathematics

Ferromagnetic resonance

Condensed matter physics

Spin–orbit interaction

Spintronics

Optoelectronics

ACS Applied Materials & Interfaces

Transition metal dichalcogenides (TMDs) have drawn great attention owing to their potential for electronic, optoelectronic, and spintronic applications. In TMDs/ferromagnetic bilayers, an efficient spin current can be generated by the TMDs to manipulate the magnetic moments in the ferromagnetic layer. In this work, we report on the electric-field modulation of spin-orbit torques (SOTs) in WS2/NiFe bilayers by the spin-torque ferromagnetic resonance technique. It is found that the radio frequency current can induce a spin accumulation at the WS2/NiFe interface because of the interfacial Rashba-Edelstein effect. As a consequence, the SOT ratio between the field-like and antidamping-like torques can be effectively controlled by applying the back-gate voltage in WS2/NiFe bilayers. These results provide a strategy for controlling the SOT by using semiconducting TMDs.

Electric-Field Control of Spin–Orbit Torques in WS<sub>2</sub>/Permalloy Bilayers

Electric-Field Control of Spin–Orbit Torques in WS2/Permalloy Bilayers

Electric-Field Control of Spin–Orbit Torques in WS₂/Permalloy Bilayers