Continuously Controllable Charge–Spin Conversion by Electric Fields in FeNi/Pt/Pb(Mg1/3Nb2/3)O3–Pb0.7Ti0.3O3 Heterostructures. Issue 10 (18th August 2021)

• Record Type: Journal Article
• Authors: Liu, Fufu; Zhou, Cai; Tang, Rujun; Chai, Guozhi; Jiang, Changjun
• Is Part Of: Physica status solidi. Volume 15:Issue 10(2021)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2021-08-18
• Subjects: charge–spin conversion efficiency -- electric-field modulation -- piezostrain -- spin–orbit torques; Solid state physics -- Periodicals; 530.4105
• DOI: 10.1002/pssr.202100342
• Languages: English
• ISSNs: 1862-6254

Abstract

Abstract : Electric‐field modulation of magnetism is a prerequisite for efficient and low‐power spintronic devices. In this work, it is demonstrated that the charge–spin conversion efficiency, ξ, is continuously controllable and can be magnified by applying a large electric field. It is further found that ξ is related to the piezostrain, which has a butterfly‐like variation with the electric field E . The butterfly‐like behavior of ξ can be explained by the fact that the spin current density can be tuned by piezostrain. The possibility of modulating spin–orbit torques at room temperature opens a route to integrating electric‐field‐induced piezostrain and current‐induced magnetization switching for next‐generation spintronic devices. Abstract : The charge–spin conversion efficiency ξ is continuously controllable and can be magnified by applying a large electric field, and ξ is related to piezostrain, which has a butterfly‐like variation with the electric field E . The butterfly‐like behavior of ξ can be explained by the fact that the spin current density can be tuned by piezostrain.