Current-induced switching of photonic spin Hall effect in a magnetic insulator based on spin

Current-induced switching of photonic spin Hall effect in a magnetic insulator based on spin–orbit torques

Published:2023-02-20 Issue:8 Volume:122 Page:
ISSN:0003-6951
Container-title:Applied Physics Letters
language:en
Short-container-title:

Author:

Tang Yujie¹^ORCID,Liang Xiao¹,Tang Tingting¹^ORCID,Bi Lei²³^ORCID,Li Chaoyang⁴,Kang Tongtong²³,Qin Jun²³,Li Jie¹^ORCID,He Yu¹,Shen Ke¹,Xu Jingduo¹

Affiliation:

1. College of Optoelectronic Engineering, Chengdu University of Information Technology 1 , Chengdu, Sichuan 610225, China

2. National Engineering Research Center of Electromagnetic Radiation Control Materials, University of Electronic Science and Technology of China 2 , Chengdu 610054, China

3. State Key Laboratory of Electronic Thin-Films and Integrated Devices, University of Electronic Science and Technology of China 3 , Chengdu 610054, China

4. State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University 4 , No. 58, Renmin Avenue, Haikou, Hainan 570228, China

Abstract

The photonic spin Hall effect (PSHE) is analogous to the electronic spin Hall effect, which has substantial potential for optoelectronic applications. However, PSHE-based devices are rarely studied, and manipulating the PSHE by charge current has remained elusive thus far. In this paper, we demonstrate current-induced switching of PSHE in the Ce1Dy2Al0.42Fe4.58O12 thin film capping with Pt electrodes, which is mediated by spin–orbit torques at the Pt/Ce1Dy2Al0.42Fe4.58O12 interface. The results show that the transverse beam shifts related to the PSHE can be reversed by applying a small order of magnitude charge current (∼108 A·m−2) to the Pt layer in opposite directions, which predicts low dissipation in our proposed heterostructure. In addition, by applying an in-plane magnetic field, the saturation beam shifts can be increased, which can significantly enhance the switching ratio.

Funder

Natural National Science Foundation of Chin

Sichuan Science and Technology Program

Chengdu Technology Innovation and Research and Development Project

Open Project Program of State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization

Project funded by China Postdoctoral Science Foundation

Scientific Research Foundation of CUIT

Publisher

AIP Publishing

Subject

Physics and Astronomy (miscellaneous)

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