| DOI | Trouver le DOI : https://doi.org/10.1016/j.ssc.2009.07.044 |
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| Auteur | Rechercher : Tse, John S.; Rechercher : Song, Zhe; Rechercher : Yao, Yansun; Rechercher : Smith, Jesse S.; Rechercher : Desgreniers, Serge; Rechercher : Klug, Dennis D.1 |
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| Affiliation | - Conseil national de recherches du Canada. Institut Steacie des sciences moléculaires du CNRC
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| Format | Texte, Article |
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| Sujet | A. Superconductors; C. x-ray scattering; D. Electron–phonon interaction; E. High pressure |
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| Résumé | The structure of BaH2 at high pressure up to 58 GPa has been investigated with synchrotron powder x-ray diffraction. A structural phase transition from the low pressure Ni2In structure to a simple hexagonal structure, which started at 40 GPa and was completed at approximately 45 GPa, was confirmed. A loss of Raman signal in this pressure range suggests that an insulator to metal transition has occurred. This observation is corroborated with first-principles calculations. The investigation of the electron–phonon coupling shows that the metallic phase is a very weak superconductor with an estimated superconducting critical temperature Tc in the range of mK. |
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| Date de publication | 2009-07-30 |
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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 | 16709332 |
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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 | f1e1c680-67dc-4021-af2f-51707b12de30 |
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| Enregistrement créé | 2011-02-15 |
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| Enregistrement modifié | 2020-04-16 |
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