| Autor: |
Volkov, O., Sheka, D., Gaididei, Y., Kravchuk, V., Rößler, U., Faßbender, J., Makarov, D. |
| Jazyk: |
angličtina |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
DPG Spring Meeting, Regensburg 2019, 31.03.-05.04.2019, Regensburg, Germany |
| Popis: |
Magnetic crystals with broken chiral symmetry possess intrinsic spinorbit driven Dzyaloshinskii-Moriya interaction (DMI). Geometrically broken symmetry in curvilinear magnetic systems also leads to the appearance of extrinsic to the crystal exchange driven effective DMI [1,2]. The interplay between the intrinsic and geometrical-induced DMI paves the way to a mesoscale DMI, whose symmetry and strength depend on the geometrical and material parameters [3]. We demonstrate this approach on the example of a helix with intrinsic DMI. Adjusting the helical geometry allows to create new artificial chiral nanostructures with defined properties from standard magnetic materials. For instance, we propose a novel approach towards artificial magnetoelectric materials, whose state is controlled by means of the geometry. [1] Y. Gaididei et. al, Phys. Rev. Lett. 112, 257203 (2014). [2] R. Streubel et. al, J. Phys. D: Applied Physics 49, 363001 (2016). [3] O. Volkov et. al, Scientific Reports 8, 866 (2018). |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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