Spin-charge interconversion of two-dimensional electron gases at oxide interfaces

Dongyao Zheng; Hui Zhang; Fengxia Hu; Baogen Shen; Jirong Sun; Weisheng Zhao

doi:10.1088/1361-6528/ad0dca

Spin-charge interconversion of two-dimensional electron gases at oxide interfaces

Nanotechnology. 2023 Dec 15;35(9). doi: 10.1088/1361-6528/ad0dca.

Authors

Dongyao Zheng^{1

2}, Hui Zhang^{1

2}, Fengxia Hu^{3

4}, Baogen Shen^{3

4

5}, Jirong Sun^{3

4

6}, Weisheng Zhao^{1

2}

Affiliations

¹ School of Integrated Circuit Science and Engineering, Beihang University, Beijing 100191, People's Republic of China.
² Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.
³ School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China.
⁴ Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang, 315201, People's Republic of China.
⁵ Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, People's Republic of China.
⁶ Spintronics Institute, Jinan University, Jinan 343672, Shandong Provence, People's Republic of China.

PMID: 37976545
DOI: 10.1088/1361-6528/ad0dca

Abstract

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.

Keywords: Rashba spin–orbit coupling; oxide interfaces; spin-charge interconversion; two-dimensional electron gases.

Publication types

Review