21 September 2017 Room-temperature skyrmion shift device for memory application (Conference Presentation)
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Abstract
Magnetic skyrmions are intensively explored for potential applications in ultralow-energy data storage and computing. To create practical skyrmionic memory devices, it is necessary to electrically create and manipulate these topologically-protected information carriers in thin films, thus realizing both writing and addressing functions. Although room-temperature skyrmions have been previously observed, fully electrically controllable skyrmionic memory devices, integrating both of these functions, have not been developed to date. In this talk, I will talk about our recent demonstration of a room-temperature skyrmion shift memory device, where individual skyrmions are controllably generated and shifted using current-induced spin-orbit torques. Particularly, it is shown that one can select the device operation mode in between: (i) writing new single skyrmions, or (ii) shifting existing skyrmions, by controlling the magnitude and duration of current pulses. Thus, we electrically realize both writing and addressing of a stream of skyrmions in the device. This prototype demonstration brings skyrmions closer to real-world computing applications.
Conference Presentation
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Guoqiang Yu, Guoqiang Yu, Pramey Upadhyaya, Pramey Upadhyaya, Qiming Shao, Qiming Shao, Hao Wu, Hao Wu, Gen Yin, Gen Yin, Xiang Li, Xiang Li, Congli He, Congli He, Wanjun Jiang, Wanjun Jiang, Xiufeng Han, Xiufeng Han, Pedram Khalili Amiri, Pedram Khalili Amiri, Kang L. Wang, Kang L. Wang, } "Room-temperature skyrmion shift device for memory application (Conference Presentation)", Proc. SPIE 10357, Spintronics X, 1035722 (21 September 2017); doi: 10.1117/12.2275155; https://doi.org/10.1117/12.2275155
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