Topological insulators-based magnetic heterostructures

Advances in Physics: X

Qing-Lin He¹  Peng Chen²  Yuchen Ji³  Xufeng Kou⁴  Qi Yao⁵ 

[1] International Center for Quantum Materials,School of Physics, Peking University, Beijing, Chin;School of Information Science and Technology,ShanghaiTech University, Shanghai, Chin;School of Physical Science and Technology,ShanghaiTech University, Shanghai, Chin;ShanghaiTech Laboratory for Topological Physics, ShanghaiTech University,Shanghai, Chin;School of Information Science and Technology,ShanghaiTech University, Shanghai, Chin;ShanghaiTech Laboratory for Topological Physics, ShanghaiTech University,Shanghai, Chin;School of Physical Science and Technology,ShanghaiTech University, Shanghai, Chin;

关键词: Topological insulators;    magnetic heterostructures;    spin-orbit coupling;    structural engineering;    quantum anomalous Hall effect;    spin-orbit torque;   

DOI  :  10.1080/23746149.2020.1870560

来源: Taylor & Francis

【 摘 要 】

The combination of magnetism and topology in magnetic topological insulators (MTIs) has led to unprecedented advancements of time reversal symmetry-breaking topological quantum physics in the past decade. Compared with the uniform films, the MTI heterostructures provide a better framework to manipulate the spin-orbit coupling and magnetic/spin properties. In this review, we summarize the fundamental mechanisms related to the physical orders host in (Bi,Sb)2(Te,Se)3-based hybrid systems. Besides, we provide an assessment on the general strategies to enhance the magnetic coupling and spin-orbit torque strength through different structural engineering approaches and effective interfacial interactions. Finally, we offer an outlook of MTI heterostructures-based spintronics applications, particularly in view of their feasibility to achieve room-temperature operation.

【 授权许可】

CC BY