| Autor: |
Belén E Zuniga-Cespedes, Kaustuv Manna, Hilary M L Noad, Po-Ya Yang, Michael Nicklas, Claudia Felser, Andrew P Mackenzie, Clifford W Hicks |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
New Journal of Physics, Vol 25, Iss 2, p 023029 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
1367-2630 |
| DOI: |
10.1088/1367-2630/acbc3f |
| Popis: |
The Mn _3 X family of compounds was the first in which a large anomalous Hall effect (AHE) was predicted to arise from a purely antiferromagnetic structure, due to the Berry curvature in momentum space. Nearly simultaneously with this prediction, a large AHE was observed experimentally in one of the hexagonal members of this family, Mn _3 Sn. Aligning antiferromagnetic domains, a necessary step for observation of the AHE, is more challenging for the cubic members of the Mn _3 X family, due to a combination of smaller spontaneous ferromagnetic moments and much stronger magnetic anisotropy. Here, we use a combination of uniaxial stress and applied magnetic field to align domains of bulk single-crystal Mn _3 Pt, and demonstrate for the first time a substantial AHE in a bulk sample of a cubic member of the Mn _3 X family. The AHE remains locked in with essentially no quantitative variation when the stress is ramped back to zero, which shows that it is not a consequence of any stress-induced ferromagnetic moment. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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