Spin-orbit torques in perpendicularly magnetized Ir22Mn78/Co20Fe60B20/MgO multilayer

Di Wu, Guoqiang Yu, Ching Tzu Chen, Seyed Armin Razavi, Qiming Shao, Xiang Li, Bingcheng Zhao, Kin L. Wong, Congli He, Zongzhi Zhang, Pedram Khalili Amiri, Kang L. Wang

研究成果: Article同行評審

45 引文 斯高帕斯(Scopus)

摘要

The current-induced spin-orbit torques (SOTs) in the perpendicularly magnetized Ir22Mn78/Co20Fe60B20/MgO structures are investigated. The damping- and field-like torques are characterized using a harmonic technique. The spin Hall angle of Ir22Mn78 is determined to be θSHE = +0.057 ± 0.002. The SOT-driven magnetization switching is also demonstrated with the assistance of an external in-plane field. Furthermore, the magneto-optical Kerr effect imaging experiments show that the magnetization switching is realized through domain nucleation and domain wall motion. These results may promise potential practical applications in high-performance SOT devices based on the antiferromagnetic materials.

原文English
文章編號222401
期刊Applied Physics Letters
109
發行號22
DOIs
出版狀態Published - 2016 十一月 28

All Science Journal Classification (ASJC) codes

  • 物理與天文學(雜項)

指紋

深入研究「Spin-orbit torques in perpendicularly magnetized Ir<sub>22</sub>Mn<sub>78</sub>/Co<sub>20</sub>Fe<sub>60</sub>B<sub>20</sub>/MgO multilayer」主題。共同形成了獨特的指紋。

引用此