Bibliogr. str. galeThe aim of this research is to explain the anomaly of frequency ω(k) of TA mode in the region of phase transition. Normal coordinates of this mode have been defined and the dependence of potential energy V(z) on normal coordinates has been approximated at a ratio of wave vectorsVytauto Didžiojo universitetasŠvietimo akademij
Bibliogr. str. galeThe contribution of Sb atoms to the temperature dependence of the piezoelectric m...
This work represents existence of the high temperature antiferroelectric phase transitions in SbSI, ...
Didelį susidomėjimą A5B6C7- tipo feroelektrikai kelia todėl, kad jie turi puslaidininkinių savybių[1...
The force constants of SbSI crystal have been calculated by the pseudo-potential method. The frequen...
Experimental investigation of SbSI exponential absorption tail of slope σ/kT(T) and isoabsorption en...
The SbSI crystals are investigated in the paraelectric and ferroelectric phases. The calculations ha...
The vibrational spectra of SbSI (Sb2S3)0.15 crystals in harmonic and anharmonic approximations are c...
Bibliogr. str. galeA method based on the simplified model of elementary cel and Born-van-Karman cycl...
The nature of normal modes' anharmonism of SbSI-type crystals is investigated in this work. In order...
Variation of the forbidden gap of SbSI crystals in the phase transition region is analyzed on the ps...
The SbSI crystals are investigated in the paraelectric and ferroelectric phases. The calculations ha...
Bibliogr. str. galeVilniaus universiteto Teorinės fizikos ir astronomijos institutasVytauto Didžiojo...
SbSI(Sb2Se3)0,25 kristalai išauginti Kietojo kūno optinėje mokslinėje laboratorijoje. Jie sudaryti i...
The reflectivity spectrum of SbSeI crystals in the spectral range of 10 – 300 cm–1 over a wide range...
Experimental results have shown that the capacitance (dielectric permittivity) and electrical conduc...
Bibliogr. str. galeThe contribution of Sb atoms to the temperature dependence of the piezoelectric m...
This work represents existence of the high temperature antiferroelectric phase transitions in SbSI, ...
Didelį susidomėjimą A5B6C7- tipo feroelektrikai kelia todėl, kad jie turi puslaidininkinių savybių[1...
The force constants of SbSI crystal have been calculated by the pseudo-potential method. The frequen...
Experimental investigation of SbSI exponential absorption tail of slope σ/kT(T) and isoabsorption en...
The SbSI crystals are investigated in the paraelectric and ferroelectric phases. The calculations ha...
The vibrational spectra of SbSI (Sb2S3)0.15 crystals in harmonic and anharmonic approximations are c...
Bibliogr. str. galeA method based on the simplified model of elementary cel and Born-van-Karman cycl...
The nature of normal modes' anharmonism of SbSI-type crystals is investigated in this work. In order...
Variation of the forbidden gap of SbSI crystals in the phase transition region is analyzed on the ps...
The SbSI crystals are investigated in the paraelectric and ferroelectric phases. The calculations ha...
Bibliogr. str. galeVilniaus universiteto Teorinės fizikos ir astronomijos institutasVytauto Didžiojo...
SbSI(Sb2Se3)0,25 kristalai išauginti Kietojo kūno optinėje mokslinėje laboratorijoje. Jie sudaryti i...
The reflectivity spectrum of SbSeI crystals in the spectral range of 10 – 300 cm–1 over a wide range...
Experimental results have shown that the capacitance (dielectric permittivity) and electrical conduc...
Bibliogr. str. galeThe contribution of Sb atoms to the temperature dependence of the piezoelectric m...
This work represents existence of the high temperature antiferroelectric phase transitions in SbSI, ...
Didelį susidomėjimą A5B6C7- tipo feroelektrikai kelia todėl, kad jie turi puslaidininkinių savybių[1...