期刊
AIP ADVANCES
卷 8, 期 11, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4993957
关键词
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资金
- Austrian Federal Ministry of Science, Research and Economy
- National Foundation for Research, Technology and Development
- Austrian Science Fund (FWF) [F4112 SFB ViCoM, I2214-N20]
- Vienna Science and Technology Fund (WWTF) [MA14-044]
A skyrmion racetrack design is proposed that allows for thermally stable skyrmions to code information and dynamical pinning sites that move with the applied current. This concept solves the problem of intrinsic distributions of pinning times and pinning currents of skyrmions at static pinning sites due to geometrical constrictions or disordered film. The dynamical pinning sites are realized by a skyrmion carrying wire, where the skyrmion repulsion is used in order to keep the skyrmions at equal distances. The information is coded by an additional layer where the presence and absence of a skyrmion is used to code the information. The lowest energy barrier for a data loss is calculated to be Delta E = 55 k(B)T(300) which is sufficient for a long time thermal stability. (C) 2018 Author(s).
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