Title: | Duplication, Collapse, and Escape of Magnetic Skyrmions Revealed Using a Systematic Saddle Point Search Method |
Author: |
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Date: | 2018-11-06 |
Language: | English |
Scope: | 197202 |
University/Institute: | Háskóli Íslands University of Iceland |
School: | Verkfræði- og náttúruvísindasvið (HÍ) School of Engineering and Natural Sciences (UI) |
Department: | Raunvísindastofnun (HÍ) Science Institute (UI) Raunvísindadeild (HÍ) Faculty of Physical Sciences (UI) |
Series: | Physical Review Letters;121(19) |
ISSN: | 0031-9007 1079-7114 (eISSN) |
DOI: | 10.1103/PhysRevLett.121.197202 |
Subject: | Methods in magnetism; Skyrmions; Noncollinear magnets; Condensed Matter & Materials Physics; Þéttefnisfræði; Segulmagn |
URI: | https://hdl.handle.net/20.500.11815/1006 |
Citation:Müller, G. P., Bessarab, P. F., Vlasov, S. M., Lux, F., Kiselev, N. S., Blügel, S., . . . Jónsson, H. (2018). Duplication, Collapse, and Escape of Magnetic Skyrmions Revealed Using a Systematic Saddle Point Search Method. Physical Review Letters, 121(19), 197202. doi:10.1103/PhysRevLett.121.197202
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Abstract:Various transitions that a magnetic Skyrmion can undergo are found in calculations using a method for climbing up the energy surface and converging onto first order saddle points. In addition to collapse and escape through a boundary, the method identifies a transition where the Skyrmion divides and forms two Skyrmions. The activation energy for this duplication process can be similar to that of collapse and escape. A tilting of the external magnetic field for a certain time interval is found to induce the duplication process in a dynamical simulation. Such a process could turn out to be an important avenue for the creation of Skyrmions in future magnetic devices.
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Description:Publisher's version (útgefin grein)
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Rights:© 2018 American Physical Society
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