Yang, S. Moon, K.-W. Kim, C. Kim, D.-H. Shin, J. Hong, J. Kim, S.K. Hwang, C. 2024-01-19T15:34:12Z 2024-01-19T15:34:12Z 2021-09-02 2021-01 2511-9044 https://pubs.kist.re.kr/handle/201004/117590 Skyrmions have attracted a great attention in spintronics because of their potential use as robust information carriers with distinctive protection. Though the realization of skyrmion-based devices requires flexible control of a skyrmion motion, achieving such a skyrmion motion has been hampered by the skyrmion Hall effect (SkHE), which refers to the presence of a finite angle between a current and the skyrmion trajectory. Here, new insight for the precise control of half-skyrmion motion is presented, including complete suppression of the SkHE by deforming the internal structure of skyrmions, which is experimentally achieved by external magnetic field to steer current-driven half-skyrmions in the desired direction. Furthermore, based on the unique advantages in half-skyrmions, the potential of half-skyrmions application beyond skyrmion-based electronics is also demonstrated by presenting simple half-skyrmion-based addition/subtraction operation. The findings of controllability of 2D half-skyrmion motion will provide new perspectives on utilization of topological solitons for device applications. ？ 2020 The Authors. Advanced Quantum Technologies published by Wiley-VCH GmbH English Wiley-VCH Verlag Control of the Half-Skyrmion Hall Effect and Its Application to Adder-Subtractor Article 10.1002/qute.202000060 1 Advanced Quantum Technologies, v.4, no.1 Advanced Quantum Technologies 4 1 N scopus 000592860000001 2-s2.0-85103335885 Quantum Science & Technology Optics Physics Optics Article Adders Device application External magnetic field Flexible control Information carriers Internal structure ITS applications Precise control Topological soliton Hall effect adder half-skyrmions skyrmion Hall effect skyrmions subtractor