Large amplitude spin-Hall oscillations due to field-like torque. (20th April 2021)

• Record Type: Journal Article
• Authors: Arun, R; Gopal, R; Chandrasekar, V K; Lakshmanan, M
• Is Part Of: Journal of physics. Volume 33:Number 16(2021)
• Publication Date: 2021-04-20
• Subjects: nonlinear dynamics -- spintronics -- high-frequency oscillations; Condensed matter -- Periodicals; Matière condensée -- Périodiques; Vaste stoffen; Vloeistoffen; Natuurkunde; Electronic journals; Computer network resources; 530.4105
• DOI: 10.1088/1361-648X/abf0c1
• Languages: English
• ISSNs: 0953-8984

Abstract

Abstract: Large amplitude spin-Hall oscillations are identified in a ferromagnetic layer with two perpendicular in-plane easy axis in the presence of field-like torque without any polarizer and external field. The analytical study confirms the possibility of oscillations in the presence of field-like torque. The investigation shows that the oscillation frequency can be tuned from ∼2 GHz to ∼80 GHz by current and enhanced by field-like torque. Further, the enhancement of frequency along with the Q -factor by current and field-like torque is also observed.