| Téléchargement | - Voir la version finale : Two-magnon scattering in the 5d all-in-all-out pyrochlore magnet Cd2Os2O7 (PDF, 974 Kio)
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| DOI | Trouver le DOI : https://doi.org/10.1038/s41467-017-00228-w |
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| Auteur | Rechercher : Nguyen, Thi Minh Hien; Rechercher : Sandilands, Luke J.1; Rechercher : Sohn, C. H.; Rechercher : Kim, C. H.; Rechercher : Wysocki, Aleksander L.; Rechercher : Yang, In-Sang; Rechercher : Moon, S. J.; Rechercher : Ko, Jae-Hyeon; Rechercher : Yamaura, J.; Rechercher : Hiroi, Z.; Rechercher : Noh, Tae Won |
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| Affiliation | - Conseil national de recherches du Canada. Science des mesures et étalons
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| Format | Texte, Article |
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| Résumé | 5d pyrochlore oxides with all-in-all-out magnetic order are prime candidates for realizing strongly correlated, topological phases of matter. Despite significant effort, a full understanding of all-in-all-out magnetism remains elusive as the associated magnetic excitations have proven difficult to access with conventional techniques. Here we report a Raman spectroscopy study of spin dynamics in the all-in-all-out magnetic state of the 5d pyrochlore Cd2Os2O7. Through a comparison between the two-magnon scattering and spin-wave theory, we confirm the large single ion anisotropy in this material and show that the Dzyaloshinskii–Moriya and exchange interactions play a significant role in the spin-wave dispersions. The Raman data also reveal complex spin–charge–lattice coupling and indicate that the metal–insulator transition in Cd2Os2O7 is Lifshitz-type. Our work establishes Raman scattering as a simple and powerful method for exploring the spin dynamics in 5d pyrochlore magnets. |
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| Date de publication | 2017-08-15 |
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| Maison d’édition | Nature Publishing Group |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 23003450 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 5ef1adf4-4f70-42e6-8572-396a059ced58 |
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| Enregistrement créé | 2018-06-28 |
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| Enregistrement modifié | 2020-05-30 |
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