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Träfflista för sökning "WFRF:(Glazyrin Konstantin) srt2:(2020)"

Sökning: WFRF:(Glazyrin Konstantin) > (2020)

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1.
  • Khandarkhaeva, Saiana, et al. (författare)
  • Novel Rhenium Carbides at 200 GPa
  • 2020
  • Ingår i: European Journal of Inorganic Chemistry. - : WILEY-V C H VERLAG GMBH. - 1434-1948 .- 1099-1948 .- 1099-0682. ; 2020:22, s. 2186-2190
  • Tidskriftsartikel (refereegranskat)abstract
    • Laser heating of rhenium in a diamond anvil cell to 3000 +/- 300 K at about 200 GPa results in formation of two previously unknown rhenium carbides, hexagonal WC-type structured ReC and orthorhombic TiSi2-type structured ReC2. The shortest C-C distances [1.758(3) angstrom at 219(5) GPa and 1.850(4) angstrom at 180(7) GPa] found in honeycomb-like carbon nets in the structure of ReC2 are quite unusual. The Re-C solid solution formed at multimegabar pressure has the carbon content of approximate to 20 at%.
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2.
  • Meier, Thomas, et al. (författare)
  • Proton mobility in metallic copper hydride from high-pressure nuclear magnetic resonance
  • 2020
  • Ingår i: Physical Review B. - : AMER PHYSICAL SOC. - 2469-9950 .- 2469-9969. ; 102:16
  • Tidskriftsartikel (refereegranskat)abstract
    • The atomic and electronic structures of Cu2H and CuH have been investigated by high-pressure nuclear magnetic resonance spectroscopy up to 96 GPa, X-ray diffraction up to 160 GPa, and density functional theory-based calculations. Metallic Cu2H was synthesized at a pressure of 40 GPa, and semimetallic CuH at 90 GPa, found stable up to 160 GPa. For Cu2H, experiments and computations show an anomalous increase in the electronic density of state at the Fermi level for the hydrogen 1s states and the formation of a hydrogen network in the pressure range 43-58 GPa, together with high H-1 mobility of similar to 10(-7) cm(2)/s. A comparison of these observations with results on FeH suggests that they could be common features in metal hydrides.
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  • Resultat 1-3 av 3

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