| Autor: |
Kononenko, D. Y., Pylypovskyi, O., Roessler, U. K., Yershov, K., Brink, J., Gaididei, Y., Makarov, D., Sheka, D. |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
DPG Spring Meeting of the Condensed Matter Section (Conference is cancelled due to COVID-19), 15.-20.03.2020, Dresden, Germany |
| Popis: |
Antiferromagnetic nanostructures as objects with ultrahigh eigenfrequencies and low sensitivity to demagnetizing fields are promising candidates for applications in data storage and information processing. Three-dimensional architectures enable new ways for tuning magnetic responses and extend ideas of spintronic devices. Here, we analyze anitferromagnetically ordered curvilinear spin chains and derive a Lagrangian taking into account the exchange interaction and effective anisotropy arising from the dipolar interaction. The static and dynamic properties of the spin system are influenced by emergent geometry-induced anisotropies and Dzyaloshinskii--Moriya interaction, which are illustrated by ring and helix geometries as case studies. Ground states and coupling of spin wave modes due to curvilinear geometry are described. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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