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How a skyrmion can appear both massive and massless
by Xiaofan Wu, Oleg Tchernyshyov
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Submission summary
| Authors (as registered SciPost users): | Oleg Tchernyshyov · Xiaofan Wu |
| Submission information | |
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| Preprint Link: | https://arxiv.org/abs/2201.08519v4 (pdf) |
| Date accepted: | April 28, 2022 |
| Date submitted: | April 12, 2022, 3:45 a.m. |
| Submitted by: | Xiaofan Wu |
| Submitted to: | SciPost Physics |
| Ontological classification | |
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| Academic field: | Physics |
| Specialties: |
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| Approach: | Theoretical |
Abstract
We explain how a ferromagnetic skyrmion can appear massive in some experiments and massless in others. The answer depends on the nature of the driving force. Two illuminating cases are the Zeeman coupling to a nonuniform magnetic field and the adiabatic spin-transfer torque from an electric current.
Published as SciPost Phys. 12, 159 (2022)