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
Abstract 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.
Fund: Project supported by the National Basic Research Program of Natural Science Foundation of China (Grant Nos. 12074220, and 11627805) and the 111 Project (Grant No. B13029).
Corresponding Authors:
Shi-Shou Kang
E-mail: skang@sdu.edu.cn
Cite this article:
Biao Jiang(姜彪), Wen-Jun Zhang(张文君), Mehran Khan Alam, Shu-Yun Yu(于淑云), Guang-Bing Han(韩广兵), Guo-Lei Liu(刘国磊), Shi-Shen Yan(颜世申), and Shi-Shou Kang(康仕寿) Synchronization of nanowire-based spin Hall nano-oscillators 2022 Chin. Phys. B 31 077503
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