Zheng Dongyao, Zhang Hui, Hu Fengxia, Shen Baogen, Sun Jirong, Zhao Weisheng
School of Integrated Circuit Science and Engineering, Beihang University, Beijing 100191, People's Republic of China.
Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.
Nanotechnology. 2023 Dec 15;35(9). doi: 10.1088/1361-6528/ad0dca.
Oxide two-dimensional electron gas (2DEG) is a low-dimensional carrier system formed at the interface of oxide heterojunctions with strong and tunable Rashba spin-orbit coupling which makes oxide 2DEG an ideal platform for converting spin current and charge current. This review provides a summary of the recent advances on the 2DEGs at oxide interfaces for spin-charge interconversion. On one hand, we analyze properties and the efficiency of the spin-to-charge conversion through different ways of spin current injection. On the other hand, the conversion of charge current to spin current under different experimental methods has been summarized. These research achievements provide perspectives and methods for understanding and regulating the spin-charge interconversion of the 2DEG at the oxide interface.
氧化物二维电子气（2DEG）是在具有强且可调谐的 Rashba 自旋轨道耦合的氧化物异质结界面处形成的低维载流子系统，这使得氧化物二维电子气成为自旋电流与电荷电流转换的理想平台。本综述总结了氧化物界面处二维电子气在自旋-电荷相互转换方面的最新进展。一方面，我们分析了通过不同自旋电流注入方式实现自旋到电荷转换的特性和效率。另一方面，总结了在不同实验方法下电荷电流到自旋电流的转换。这些研究成果为理解和调控氧化物界面处二维电子气的自旋-电荷相互转换提供了视角和方法。
