An overview of SrRuO3-based heterostructures for spintronic and topological phenomena. (9th June 2022)

• Record Type: Journal Article
• Authors: Gu, Youdi; Wang, Qian; Hu, Weijin; Liu, Wei; Zhang, Zhidong; Pan, Feng; Song, Cheng
• Is Part Of: Journal of physics. Volume 55:Number 23(2022)
• Publication Date: 2022-06-09
• Subjects: SrRuO3-based heterostructures -- spin–orbit coupling -- oxide spintronics -- topological oxide electronics -- multifunctional devices; Physics -- Periodicals; 530
• DOI: 10.1088/1361-6463/ac4fd3
• Languages: English
• ISSNs: 0022-3727

Abstract

Abstract: SrRuO3 (SRO)-based heterostructures have attracted much attention for potential applications such as electrodes, oxide spintronics, topological electronics and electrocatalytic function mainly due to the strong spin–orbit coupling, itinerant ferromagnetism with 4 d electrons, high metallic conductivity, perpendicular magnetic anisotropy and rich oxygen octahedral distortion of SRO. Here, this work aims to offer a timely and systematic review on SRO-based heterostructures for its emerging opportunities in oxide spintronic and topological electronic applications. We first present a brief summary of the current status in SRO-based heterostructures and describe the motivations of this review. We then briefly review the surface and interface modulation in SRO-based heterostructures, including oxygen octahedral distortions (antiferrodistortive mode and ferroelectric mode) engineering and ion defect engineering. In the third part, we discuss the spin-charge interconversion phenomena in SRO-based heterostructures, covering the inverse spin Hall effect and current-induced spin-orbit torques. Particularly, in the fourth part, we discuss the emergent topological Hall effect and underlying mechanism in SRO-based heterostructures, including the two-channel anomalous Hall effect and Berry phase manipulation. The fifth part presents the magnetic Weyl fermions and its electric-field control of SRO films. We finally conclude with a discussion of challenges and prospects of SRO-based heterostructures, which provides a guidance for exploring novel physical properties and designing multifunctional devices based on SRO.