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Title: Guided current-induced skyrmion motion in 1D potential well
Authors: Purnama, Indra
Gan, Wei Liang
Wong, De Wei
Lew, Wen Siang
Keywords: DRNTU::Science::Physics::Electricity and magnetism
Issue Date: 2015
Source: Purnama, I., Gan, W. L., Wong, D. W., & Lew, W. S. (2015). Guided current-induced skyrmion motion in 1D potential well. Scientific Reports, 5, 10620-.
Series/Report no.: Scientific Reports
Abstract: Magnetic skyrmions are particle-like magnetization configurations which can be found in materials with broken inversion symmetry. Their topological nature allows them to circumvent around random pinning sites or impurities as they move within the magnetic layer, which makes them interesting as information carriers in memory devices. However, when the skyrmion is driven by a current, a Magnus force is generated which leads to the skyrmion moving away from the direction of the conduction electron flow. The deflection poses a serious problem to the realization of skyrmion-based devices, as it leads to skyrmion annihilation at the film edges. Here, we show that it is possible to guide the movement of the skyrmion and prevent it from annihilating by surrounding and compressing the skyrmion with strong local potential barriers. The compressed skyrmion receives higher contribution from the spin transfer torque, which results in the significant increase of the skyrmion speed.
ISSN: 2045-2322
DOI: 10.1038/srep10620
Schools: School of Physical and Mathematical Sciences 
Rights: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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