| Autor: |
Priya R. Baral, Oleg I. Utesov, Chen Luo, Florin Radu, Arnaud Magrez, Jonathan S. White, Victor Ukleev |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Physical Review Research, Vol 5, Iss 3, p L032019 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2643-1564 |
| DOI: |
10.1103/PhysRevResearch.5.L032019 |
| Popis: |
The helical magnetic structures of cubic chiral systems are well explained by the competition among Heisenberg exchange, Dzyaloshinskii-Moriya interaction, cubic anisotropy, and anisotropic exchange interaction (AEI). Recently, the role of the latter has been argued theoretically to be crucial for the low-temperature phase diagram of the cubic chiral magnet Cu_{2}OSeO_{3}, which features tilted conical and disordered skyrmion states for a specific orientation of the applied magnetic field (μ_{0}H[over ⃗]∥[001]). In this study, we exploit transmission resonant x-ray scattering in vector magnetic fields to directly quantify the strength of the AEI in Cu_{2}OSeO_{3} and measure its temperature dependence. We find that the AEI continuously increases below 50 K, resulting in a conical spiral pitch variation of 10% in the (001) plane. Our results contribute to establishing the interaction space that supports tilted cone and low-temperature skyrmion state formation, facilitating the goals for both a quantitative description and eventual design of the diverse spiral states existing amongst chiral magnets. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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