@article{99f3f997801244a3882209571efa9364,
title = "Sign Change of Spin-Orbit Torque in Pt/NiO/CoFeB Structures",
abstract = "Antiferromagnetic insulators have recently been proved to support spin current efficiently. Here, we report the dampinglike spin-orbit torque (SOT) in Pt/NiO/CoFeB has a strong temperature dependence and reverses the sign below certain temperatures, which is different from the slight variation with temperature in the Pt/CoFeB bilayer. The negative dampinglike SOT at low temperatures is proposed to be mediated by the magnetic interactions that tie with the {"}exchange bias{"}in Pt/NiO/CoFeB, in contrast to the thermal-magnon-mediated scenario at high temperatures. Our results highlight the promise to control the SOT through tuning the magnetic structure in multilayers.",
author = "Dapeng Zhu and Tianrui Zhang and Xiao Fu and Runrun Hao and Amir Hamzi{\'c} and Huaiwen Yang and Xueying Zhang and Hui Zhang and Ao Du and Danrong Xiong and Kewen Shi and Shishen Yan and Shufeng Zhang and Albert Fert and Weisheng Zhao",
note = "Funding Information: This work was supported by National Key R&D Program of China (2021YFB3601303 and 2018YFB0407602), National Natural Science Foundation of China (Grant No. 11904017), the International Collaboration 111 Project (No. B16001), Beijing Municipal Science and Technology Project under Grant No. Z201100004220002, the Fundamental Research Funds for the Central Universities of China, and the Beijing Advanced Innovation Center for Big Data and Brain Computing (BDBC). Publisher Copyright: {\textcopyright} 2022 American Physical Society.",
year = "2022",
month = may,
day = "27",
doi = "10.1103/PhysRevLett.128.217702",
language = "English (US)",
volume = "128",
journal = "Physical review letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "21",
}