ÉTUDE DES PROPRIÉTÉS STRUCTURALES ET ÉLASTIQUES SOUS HAUTE PRESSION DE SRTIO3 DANS LES PHASES CUBIQUE ET TÉTRAGONALE

dc.contributor.author	HAICHOUR, RACHIDA
dc.contributor.author	HACHEMI, AMEL
dc.date.accessioned	2022-05-31T12:38:02Z
dc.date.available	2022-05-31T12:38:02Z
dc.date.issued	2013-12-16
dc.identifier.uri	http://depot.umc.edu.dz/handle/123456789/12840
dc.description.abstract	We investigated the athermal high -pressure behavior of the elastic properties of SrTiO3 (STO) up to 26GPa in cubic and tetragonal phases using the ab initio pseudo-potential method. Our results for the cubic phase are in good agreement with experiment and previous pseudo-potential calculations. There are no studies for the tetragonal phase under high pressure available for comparison. Our calculations show that the cubic-tetragonal phase occurs at 6 GPa. The elastic proprieties of STO are strongly pressure dependent with instabilities near the phase transition pressure. STO is more resistant to plastic deformation and the fracture in the cubic phase than in the tetragonal phase
dc.language.iso	en
dc.publisher	Université Frères Mentouri - Constantine 1
dc.subject	SrTiO3
dc.subject	tetragonal phases
dc.subject	GPa
dc.title	ÉTUDE DES PROPRIÉTÉS STRUCTURALES ET ÉLASTIQUES SOUS HAUTE PRESSION DE SRTIO3 DANS LES PHASES CUBIQUE ET TÉTRAGONALE
dc.type	Article