Toggle-switch-like crossover between two types of isolated skyrmions within the conical phase of cubic helimagnets
| Autor: | Alexei N. Bogdanov, Katsuya Inoue, Andrey O. Leonov |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Physics
Condensed Matter::Quantum Gases Condensed matter physics Condensed Matter - Mesoscale and Nanoscale Physics Skyrmion Crossover High Energy Physics::Phenomenology FOS: Physical sciences 02 engineering and technology Conical surface Toggle switch 021001 nanoscience & nanotechnology Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 01 natural sciences Lattice (order) 0103 physical sciences Mesoscale and Nanoscale Physics (cond-mat.mes-hall) Perpendicular Cluster (physics) 010306 general physics 0210 nano-technology Nonlinear Sciences::Pattern Formation and Solitons |
| DOI: | 10.48550/arxiv.1806.01972 |
| Popis: | We investigate the field-induced crossover between two types of isolated skyrmions that exist within the conical phase of cubic helimagnets and orient themselves either along or perpendicular to the field. Such a crossover takes place for the same value of the field at which the closely packed skyrmion lattice was predicted to stabilize in the $A$-phase region. The clusters and a skyrmion lattice composed by the skyrmions perpendicular to the field, however, are unfavorable and lose their stability as compared with the skyrmions parallel to the field. We also followed the transformation of perpendicular skyrmions into pairs of merons that rupture the helical state. Attractive interactions between different types of isolated skyrmions make it feasible to construct complex cluster states with the cubic arrangement of skyrmions. |
| Databáze: | OpenAIRE |
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