ПросмотрZinātniskie raksti (CFI) / Scientific articles по теме "Raman spectra"

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    • Complex multilayer carbon structures for green energetics 

      Lesnicenoks, Peteris; Berzina, Astrida; Lukoševičš, Ingars; Grinberga, Liga; Jekabsons, Laimonis; Kleperis, Janis; Knite, Maris; Taurins, Gatis (Estonian Academy Publishers, 2017)
      We investigated a promising material for hydrogen storage and sensing. The material was obtained by exfoliating recycled graphite waste and simultaneously modifying the product with metal impurities (Bi, V, Cu). As a ...

    • High-pressure synthesis of boron-rich chalcogenides B12S and B12Se 

      Cherednichenko, Kirill A.; Mukhanov, Vladimir A.; Kalinko, Aleksandr; Solozhenko, Vladimir L. (Elsevier, 2022)
      Two boron-rich chalcogenides B12S and B12Se isostructural to α-rhombohedral boron were synthesized by chemical reaction of the elements at high-pressure – high-temperature conditions. The crystal structures and stoichiometries ...

    • Nitrogen interstitial defects in silicon. A quantum mechanical investigation of the structural, electronic and vibrational properties 

      Platonenko, Alexander; Gentile, Francesco Silvio; Maul, Jefferson; Pascale, Fabien; Kotomin, Eugene A.; Dovesi, Roberto (Elsevier B.V., 2019)
      The vibrational features of eight interstitial nitrogen related defects in silicon have been investigated at the first principles quantum mechanical level by using a periodic supercell approach, a hybrid functionals, an ...

    • Optical Characteristics of MgAl2O4 Single Crystals Irradiated by 220 MeV Xe Ions 

      Akilbekov, Abdirash; Kiryakov, Arseny; Baubekova, Guldar; Aralbayeva, Gulnara; Dauletbekova, Alma; Akylbekova, Aiman; Ospanova, Zhulduz; Popov, Anatoli I. (MDPI, 2023)
      In In this study, the optical properties of magnesium-aluminate spinel were examined after being irradiated with 220 MeV Xe ions. The research aimed to simulate the impact of nuclear fuel fission fragments on the material. ...