Browsing Articole din publicaţii internaţionale by Author "ANASTASSAKIS, Evangelos"

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Observation of surface phonon mode in porous GaP

KARAVANSKII, V. A.; ANASTASSAKIS, Evangelos; RAPTIS, Y. S.; SOKOLOV, V. N.; TIGINYANU, I. M.; URSAKI, V. V. (Society of Photo-Optical Instrumentation Engineers, SPIE, 1996)

Simple preparation technique of nanoporous semiconductors by anodization has opened new ways to form and investigate quantum and surface effects in nanosized objects. It has also allowed technologists to extend the range ...
Phase Transitions Induced by Hydrostatic Pressure in II-III2-VI4 Compounds

URSAKI, Veacheslav V.; BURLAKOV, Igor I.; TIGINYANU, Ivan M.; RAPTIS, Yannis S.; ANASTASSAKIS, Evangelos; ANEDDA, Alberto; CORPINO, Riccardo (IOP Publishing, 2000)

II-III2-VI4 compounds with different crystal structures have been studied by Raman spectroscopy (RS) under hydrostatic pressure up to 30 GPa. The phase transition characteristics induced by hydrostatic pressure i.e. the ...
Pressure Induced Phase Transitions in Spinel and Wurtzite Phases of ZnAl2S4Compound

URSAKI, Veacheslav V.; BURLAKOV, Igor I.; TIGINYANU, Ivan M.; RAPTIS, Yannis S.; ANASTASSAKIS, Evangelos; AKSENOV, Igor; SATO, Katsuaki (IOP Publishing, 1998)

ZnAl2S4 single crystals with spinel (α-phase) and wurtzite (w-phase) structures have been studied by Raman spectroscopy under hydrostatic pressures of up to 300 kbar. Significant changes in the phonon spectrum of the α-phase ...

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