| Téléchargement | - Voir la version finale : Inelastic neutron scattering study of phonon dispersion relation in higher manganese silicides (PDF, 2.7 Mio)
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| DOI | Trouver le DOI : https://doi.org/10.3390/cryst13050741 |
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| Auteur | Rechercher : Belanger, Randy; Rechercher : Clancy, James Patrick; Rechercher : Jain, SheetalIdentifiant ORCID : https://orcid.org/0000-0002-2631-0010; Rechercher : Yamani, Zahra1; Rechercher : Tseng, Yu-Chih; Rechercher : Kim, Young-JuneIdentifiant ORCID : https://orcid.org/0000-0002-1172-8895 |
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| Affiliation | - Conseil national de recherches Canada. Technologies de sécurité et de rupture
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| Bailleur de fonds | Rechercher : Collaborative Research and Training Experience (CREATE) program; Rechercher : Discovery Grant; Rechercher : Program of Energy Research and Development |
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| Format | Texte, Article |
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| Sujet | inelastic neutron scattering; thermoelectric materials; higher manganese silicide; phonon dispersion relation |
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| Résumé | We report inelastic neutron scattering (INS) measurements of the phonon dispersion relation in higher manganese silicides (HMSs). A large ingot of HMS is synthesized using a slow cooling method, which is found to have Mn₁₅Si₂₆ as the primary phase. The sample is composed of highly oriented crystallites as confirmed by a neutron pole-figure study and thermal conductivity data. Our INS results are mostly consistent with earlier experimental and theoretical phonon studies in HMS, including the presence of a low-lying twisting mode. However, some discrepancies are also observed. Most notably, a 5 meV gap at the zone center and the softer dispersion relation of the low-lying twisting mode. We discuss the potential origins of these observations and their implications for the thermal properties of HMS. |
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| Date de publication | 2023-04-28 |
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| Maison d’édition | MDPI |
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| Licence | |
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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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| 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 | 2bdff942-a5c2-422f-8e59-0bbf24e8cebf |
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| Enregistrement créé | 2024-04-11 |
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| Enregistrement modifié | 2024-04-11 |
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