Physics

Inverse orbital Hall effect and orbitronic terahertz emission observed in the materials with weak spin-orbit coupling

P. Wang, Z. Feng, et al.

Explore the groundbreaking research on the inverse orbital Hall effect (IOHE) revealing fascinating orbitronic terahertz emissions in Ti and Mn materials. Conducted by a team from Tiangong University and other notable institutions, this study highlights the potential of manipulating IOHE and the inverse spin Hall effect for developing innovative spin-orbitronic devices and THz emitters.

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Playback language: English

Index

Abstract

The Orbital Hall effect, originating from materials with weak spin-orbit coupling, has gained significant interest for spin-orbitronic applications. This paper demonstrates the inverse orbital Hall effect (IOHE) and observes orbitronic terahertz (THz) emission in Ti and Mn materials. Spin-orbit transition in the ferromagnetic layer converts the generated orbital current into charge current via IOHE in the Ti and Mn layers. A W layer further enhances orbitronic THz emission. The emission is manipulated by combining IOHE and the inverse spin Hall effect in various sample configurations. The findings unveil the underlying physics and offer pathways for developing spin-orbitronic devices and THz emitters.

Publisher

npj Quantum Materials

Published On

May 30, 2023

Authors

Ping Wang, Zheng Feng, Yuhe Yang, Delin Zhang, Quancheng Liu, Zedong Xu, Zhiyan Jia, Yong Wu, Guoqiang Yu, Xiaoguang Xu, Yong Jiang

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