Journal
NANO LETTERS
Volume 14, Issue 8, Pages 4432-4437Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl501379k
Keywords
Magnetic skyrmion; spintronics; micromagnetic simulation; magnetization dynamics
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Funding
- Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan [24224009, 24360036]
- Japan Science and Technology Agency
- [2610547]
- Grants-in-Aid for Scientific Research [14J10547] Funding Source: KAKEN
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We study by the micromagnetic simulations the skyrmion motion along the edge driven by the current transverse to it. We found that (i) the velocity is enhanced by the factor of similar to 1/alpha (alpha: the Gilbert damping) with the maximum value determined only by the confining force from the edge, (ii) the inertia appear due to the confining potential with the coordinate perpendicular to the edge playing the role of the kinetic momentum, and (iii) the collision between the two skyrmions is almost elastic without causing any internal distortions.
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