| DOI | Resolve DOI: https://doi.org/10.1016/j.ssc.2009.07.044 |
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| Author | Search for: Tse, John S.; Search for: Song, Zhe; Search for: Yao, Yansun; Search for: Smith, Jesse S.; Search for: Desgreniers, Serge; Search for: Klug, Dennis D.1 |
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| Affiliation | - National Research Council of Canada. NRC Steacie Institute for Molecular Sciences
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| Format | Text, Article |
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| Subject | A. Superconductors; C. x-ray scattering; D. Electron–phonon interaction; E. High pressure |
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| Abstract | 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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| Publication date | 2009-07-30 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 16709332 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | f1e1c680-67dc-4021-af2f-51707b12de30 |
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| Record created | 2011-02-15 |
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| Record modified | 2020-04-16 |
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