Experimental observation of interlayer perpendicular standing spin wave mode with low damping in skyrmion-hosting[Pt/Co/Ta]_(10)multilayer  

作　　者：Zhen-Dong Chen Mei-Yang Ma Sen-Fu Zhang Mang-Yuan Ma Zi-Zhao Pan Xi-Xiang Zhang Xue-Zhong Ruan Yong-Bing Xu Fu-Sheng Ma 陈振东;马眉扬;张森富;马莽原;潘咨兆;张西祥;阮学忠;徐永兵;马付胜(Jiangsu Key Laboratory of Opto-Electronic Technology,Center for Quantum Transport and Thermal Energy Science,School of Physics and Technology,Nanjing Normal University,Nanjing 210046,China;Jiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials,School of Electronic Science and Engineering,Nanjing University,Nanjing 210093,China;School of Physical Science and Technology,Lanzhou University,Lanzhou 730000,China;Physical Science and Engineering Division(PSE),King Abdullah University of Science and Technology(KAUST),Thuwal 23955-6900,Saudi Arabia)

机构地区：[1]Jiangsu Key Laboratory of Opto-Electronic Technology,Center for Quantum Transport and Thermal Energy Science,School of Physics and Technology,Nanjing Normal University,Nanjing 210046,China [2]Jiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials,School of Electronic Science and Engineering,Nanjing University,Nanjing 210093,China [3]School of Physical Science and Technology,Lanzhou University,Lanzhou 730000,China [4]Physical Science and Engineering Division(PSE),King Abdullah University of Science and Technology(KAUST),Thuwal 23955-6900,Saudi Arabia

出　　处：《Chinese Physics B》2022年第11期548-554,共7页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.12074189,11704191,11774160,and 61427812);the Natural Science Foundation of Jiangsu Province,China(Grant Nos.BK20192006 and BK20211144);the Postdoctoral Research Funding Program of Jiangsu Province,China(Grant No.2021K503C)。

摘　　要：An interlayer perpendicular standing spin wave mode is observed in the skyrmion-hosting[Pt/Co/Ta]_(10) multilayer by measuring the time-resolved magneto-optical Kerr effect.The observed interlayer mode depends on the interlayer spin-pumping and spin transfer torque among the neighboring Co layers.This mode shows monotonically increasing frequency-field dependence which is similar to the ferromagnetic resonance mode,but within higher frequency range.Besides,the damping of the interlayer mode is found to be a relatively low constant value of 0.027 which is independent of the external field.This work expounds the potential application of the[heavy-metal/ferromagnetic-metal]_(n) multilayers to skyrmion-based magnonic devices which can provide multiple magnon modes,relatively low damping,and skyrmion states,simultaneously.

关 键 词：dynamic properties of magnetization spin waves domain structure magnetic properties of interfaces 

分 类 号：O469[理学—凝聚态物理]