Noncollinear magnetic structure in U2Pd2In at high magnetic fields
| Autor: | Prokes, K., Bartkowiak, M., Gorbunov, D. I., Prokhnenko, O., Rivin, O., Smeibidl, P. |
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| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Phys. Rev. Research 2, (2020) 013137 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevResearch.2.013137 |
| Popis: | We report an unexpected magnetic-field-driven magnetic structure in the 5f-electron Shastry- Sutherland system U2Pd2In. This phase develops at low temperatures from a noncollinear antiferromagnetic ground state above the critical field of 25.8 T applied along the a-axis. All U moments have a net magnetic moment in the direction of the applied field, described by a ferromagnetic propagation vector qF = (0 0 0) and an antiferromagnetic component described by a propagation vector qAF = (0 0.30 1/2 ) due to a modulation in the direction perpendicular to the applied field. We conclude that this surprising noncollinear magnetic structure is due to a competition between the single-ion anisotropy trying to keep moments, similar to the ground state, along the [110]-type directions, Dzyaloshinskii-Moryia interaction forcing them to be perpendicular to each other and application of the external magnetic field attempting to align them along the field direction. Comment: 6 Figures |
| Databáze: | arXiv |
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