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- W4313377912 abstract "Abstract Magnetic skyrmion has the advantages of stable topology and small volume. Many researchers choose different materials or build double free layers for using skyrmions in spin torque nano-oscillators capable of producing GHz frequencies. In this paper, the dynamics of the two semi-skyrmions in a circular nano-pillar with perpendicular magnetic anisotropy free layer and a spin polarizer are studied using micromagnetic simulation. The oscillation frequency of two semi-skyrmions is more than two times higher that of the single semi-skyrmion. In addition, we also explore the influences of different parameters (current density, damping coefficient, anisotropy constant, and temperature) on the motion of two semi-skyrmions. The results show that damping coefficient and exchange interaction constant have the most pronounced influence on the oscillation frequency of the system." @default.
- W4313377912 created "2023-01-06" @default.
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- W4313377912 date "2022-12-19" @default.
- W4313377912 modified "2023-09-27" @default.
- W4313377912 title "Dynamics of magnetic system formed by two semi-skyrmions in circular nano-pillars with a perpendicular anisotropy" @default.
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- W4313377912 doi "https://doi.org/10.1088/1361-6463/aca989" @default.
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