DOI | Trouver le DOI : https://doi.org/10.1007/s00269-006-0106-x |
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Auteur | Rechercher : Mitchell, Roger; Rechercher : Cranswick, Lachlan1; Rechercher : Swainson, Ian1 |
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Affiliation | - Conseil national de recherches du Canada. Centre canadien de faisceaux de neutrons du CNRC
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Format | Texte, Article |
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Résumé | The cell dimensions of the fluoroperovskite KMgF3 synthesized by solid state methods have been determined by powder neutron diffraction and Rietveld refinement over the temperature range 293–3.6 K using Pt metal as an internal standard for calibration of the neutron wavelength. These data demonstrate conclusively that cubic $$ Pm\overline{3} m $$ KMgF3 does not undergo any phase transitions to structures of lower symmetry with decreasing temperature. Cell dimensions range from 3.9924(2) at 293 K to 3.9800(2) at 3.6 K, and are essentially constant within experimental error from 50 to 3.6 K. The thermal expansion data are described using a fourth order polynomial function. |
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Date de publication | 2006-11-22 |
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Dans | |
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Numéro NPARC | 12337925 |
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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 | b364cb88-d0ad-444b-9bfd-ef71401f474d |
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Enregistrement créé | 2009-09-10 |
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Enregistrement modifié | 2020-04-22 |
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