Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 10, Issue 3, Pages 2843-2849Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.7b16919
Keywords
spintronics; spin-orbit torques; transition metal dichalcogenides; Rashba-Edelstein effect; electric-field
Funding
- National Natural Science Foundation of China [51732010, 51761145025]
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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.
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