Spin-orbit torque switching in perpendicular Y3Fe5O12/Pt bilayer.

Autor: Guo, C. Y., Wan, C. H., Zhao, M. K., Wu, H., Fang, C., Yan, Z. R., Feng, J. F., Liu, H. F., Han, X. F.
Předmět:
Zdroj: Applied Physics Letters; 5/13/2019, Vol. 114 Issue 19, pN.PAG-N.PAG, 5p, 1 Black and White Photograph, 1 Diagram, 2 Graphs
Abstrakt: All electrical manipulation of magnetization in an Y3Fe5O12 (YIG)/Pt system was crucial to develop magnon-based spintronic devices. In this study, we realized spin–orbit torque (SOT) switching in perpendicular YIG/Pt films. Perpendicular magnetic anisotropy of YIG was induced by strain from the bottom substrate and also influenced by the capping Pt layer and subsequent annealing. Besides, SOT efficiency of the YIG/Pt system was also measured. Damping-like torque with an efficiency of 0.98 Oe/(MA/cm2) was the dominating term to contribute to the SOT switching. This work was beneficial to construct electrically controllable magnon devices. [ABSTRACT FROM AUTHOR]
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