Browsing Articole din publicaţii internaţionale by Subject "order-disorder effects"

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High-pressure optical and vibrational properties of CdGa2Se4: Order-disorder processes in adamantine compounds

GOMIS, O.; VILAPLANA, R.; MANJÓN, F. J.; PÉREZ-GONZÁLEZ, E.; LÓPEZ-SOLANO, J.; RODRÍGUEZ-HERNÁNDEZ, P.; MUÑOZ, A.; ERRANDONEA, D.; RUIZ-FUERTES, J.; SEGURA, A.; SANTAMARÍA-PÉREZ, D.; TIGINYANU, I. M.; URSAKI, V. V. (American Institute of Physics, 2012)

High-pressure optical absorption and Raman scattering measurements have been performed in defect chalcopyrite (DC) CdGa2Se4 up to 22 GPa during two pressure cycles to investigate the pressure-induced order-disorder phase ...
Improvement of InP crystalline perfection by He+-implantation and subsequent annealing

TIGINYANU, I. M.; TERLETSKY, A. I.; URSAKI, V. V. (ELSEVIER, 1995)

The influence has been studied of 100-keV He+-ion implantation and subsequent thermal annealing on Raman scattering spectra of LEC-grown InP single crystals with (100)- and (111)-crystallographic orientations of the surface. ...
Order-disorder phase transition in CdAl2S4 under hydrostatic pressure

BURLAKOV, I. I.; RAPTIS, Y.; URSAKI, V. V.; ANASTASSAKIS, E.; TIGINYANU, I. M. (ELSEVIER, 1997)

CdAl2S4 single crystals with the defect chalcopyrite structure have been studied by Raman spectroscopy at hydrostatic pressures up to 150 kbar. The Raman scattering spectra were found to undergo substantial changes around ...

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