Synchronization of nanowire-based spin Hall nano-oscillators  

作　　者：Biao Jiang Wen-Jun Zhang Mehran Khan Alam Shu-Yun Yu Guang-Bing Han Guo-Lei Liu Shi-Shen Yan Shi-Shou Kang 姜彪;张文君;Mehran Khan Alam;于淑云;韩广兵;刘国磊;颜世申;康仕寿(School of Physics,State Key Laboratory of Crystal Materials,Shandong University,Jinan 250100,China;Department of Physics and Electronic Science,Weifang University,Weifang 261061,China)

机构地区：[1]School of Physics,State Key Laboratory of Crystal Materials,Shandong University,Jinan 250100,China [2]Department of Physics and Electronic Science,Weifang University,Weifang 261061,China

出　　处：《Chinese Physics B》2022年第7期549-553,共5页中国物理B（英文版）

基　　金：the National Basic Research Program of Natural Science Foundation of China(Grant Nos.12074220,and 11627805);the 111 Project(Grant No.B13029)。

摘　　要：The synchronization of the spin Hall nano-oscillator(SHNO)device driven by the pure spin current has been investigated with micromagnetic simulations.It was found that the power spectra of nanowire-based SHNO devices can be synchronized by varying the current flowing in the heavy metal(HM)layer.The synchronized signals have relatively high power and narrow linewidth,favoring the potential applications.We also found that the synchronized spectra are strongly dependent on both the number and length of nanowires.Moreover,a periodic modulation of power spectra can be obtained by introducing interfacial Dzyaloshinskii–Moriya interaction(iDMI).Our findings could enrich the current understanding of spin dynamics driven by the pure spin current.Further,it could help to design novel spintronic devices.

关 键 词：spin Hall nano-oscillators SYNCHRONIZATION Dzyaloshinskii–Moriya interaction spin wave 

分 类 号：O469[理学—凝聚态物理] TN752[理学—电子物理学]