Stability of skyrmions in perturbed ferromagnetic chiral magnets
Magnetic skyrmions, topological spin textures observed in chiral magnets, have attracted huge interest due to their applications in the field of spintronics. In this work we study the stability of circular isolated skyrmions in ferromagnetic chiral magnets under the influence of different perturbati...
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Autores principales: | , , , |
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Formato: | Articulo Preprint |
Lenguaje: | Inglés |
Publicado: |
2019
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Materias: | |
Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/125619 |
Aporte de: |
id |
I19-R120-10915-125619 |
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record_format |
dspace |
institution |
Universidad Nacional de La Plata |
institution_str |
I-19 |
repository_str |
R-120 |
collection |
SEDICI (UNLP) |
language |
Inglés |
topic |
Física Physics Magnet Field (physics) Instability Spintronics Condensed matter physics Ferromagnetism Spin-½ Phase diagram Skyrmion |
spellingShingle |
Física Physics Magnet Field (physics) Instability Spintronics Condensed matter physics Ferromagnetism Spin-½ Phase diagram Skyrmion Osorio, Santiago Antonio Sturla, Mauricio Rosales, Héctor Diego Cabra, Daniel Carlos Stability of skyrmions in perturbed ferromagnetic chiral magnets |
topic_facet |
Física Physics Magnet Field (physics) Instability Spintronics Condensed matter physics Ferromagnetism Spin-½ Phase diagram Skyrmion |
description |
Magnetic skyrmions, topological spin textures observed in chiral magnets, have attracted huge interest due to their applications in the field of spintronics. In this work we study the stability of circular isolated skyrmions in ferromagnetic chiral magnets under the influence of different perturbations and external fields. To this end we develop a general systematic procedure based in a harmonic expansion series of the skyrmion boundary which allows the identification of the breakdown of the skyrmion circular shape on each instability channel independently. We apply our approach to a few representative spin models of actual interest in order to obtain the zero temperature phase diagram, where isolated skyrmions emerge as metastable states. The results presented in this paper are in agreement with properties of isolated skyrmions observed in recent experiments, opening the possibility of extending the analysis to more complex situations. |
format |
Articulo Preprint |
author |
Osorio, Santiago Antonio Sturla, Mauricio Rosales, Héctor Diego Cabra, Daniel Carlos |
author_facet |
Osorio, Santiago Antonio Sturla, Mauricio Rosales, Héctor Diego Cabra, Daniel Carlos |
author_sort |
Osorio, Santiago Antonio |
title |
Stability of skyrmions in perturbed ferromagnetic chiral magnets |
title_short |
Stability of skyrmions in perturbed ferromagnetic chiral magnets |
title_full |
Stability of skyrmions in perturbed ferromagnetic chiral magnets |
title_fullStr |
Stability of skyrmions in perturbed ferromagnetic chiral magnets |
title_full_unstemmed |
Stability of skyrmions in perturbed ferromagnetic chiral magnets |
title_sort |
stability of skyrmions in perturbed ferromagnetic chiral magnets |
publishDate |
2019 |
url |
http://sedici.unlp.edu.ar/handle/10915/125619 |
work_keys_str_mv |
AT osoriosantiagoantonio stabilityofskyrmionsinperturbedferromagneticchiralmagnets AT sturlamauricio stabilityofskyrmionsinperturbedferromagneticchiralmagnets AT rosaleshectordiego stabilityofskyrmionsinperturbedferromagneticchiralmagnets AT cabradanielcarlos stabilityofskyrmionsinperturbedferromagneticchiralmagnets |
bdutipo_str |
Repositorios |
_version_ |
1764820451950854145 |