Browsing 2017 by Subject "crystals"

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  • Metal-Insulator Transition of Peierls Type in TTT2I3 Crystals in 3D Approximation 
    ANDRONIC, Silvia; BALMUȘ, Ion; CASIAN, Anatolie (Technical University of Moldova, 2017)
    The metal-insulator transition in quasi-one-dimensional organic crystals of tetrathiotetraceneiodide, TTT2I3, is investigated in 3D approximation. A more complete physical model of the crystal is applied which takes into ...
  • Radiative Transitions in Sm2+ Doped ZnAl2Se4 and KCl Crystals 
    TIRON, Andrew; ZALAMAI, Victor; RUSU, Emil; SYRBU, Nicolae; BEJAN, Nicolae (Technical University of Moldova, 2017)
    Photoluminescence spectra of ZnAl2Se4:Sm2+ and KCl:Sm2+ due to the processes of charge carriers recombination from levels 5Dj,5Lj,5Gj and 5Hj (4f55d1) on levels 7Fj of samarium ions were investigated. The broad photoluminescence ...
  • Resonance Raman Scattering and Excitons Optical Orientation in CuGaSe2 Crystals 
    ZALAMAI, Victor; SYRBU, Nicolae; Tiron, Andrew; DOROGAN, Valerian (Technical University of Moldova, 2017)
    Resonance Raman and luminescence spectra of CuGaSe2 crystals measured at 9 K and excited by He-Ne (632.8 nm) and Ar+ (514.5 nm) lasers were investigated. Excitons parameters in the region of A, B and C excitonic series ...

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