Titre :	Theoretical study on YH6 cubic system based on ab initio methods
Type de document :	texte manuscrit
Auteurs :	Anfal Begagra, Auteur ; Salah Khenchoul, Directeur de thèse
Editeur :	Laghouat : Université Amar Telidji - Département des sciences de la matière
Année de publication :	2020
Importance :	54 p.
Format :	30 cm.
Accompagnement :	1 disque optique numérique (CD-ROM)
Note générale :	Option : Applied Physics
Langues :	Anglais
Mots-clés :	Structural properties  Vibrational properties  Critical temperature  Superconducting gap  Coherence length of cooper pair  Superconductors  Clathrate Yttrium hydride  Cubic structure  ABINIT  DFT  DFPT
Résumé :	The objective of this work is calculation of the structural, andVibrational properties in addition to critical temperature, superconducting gap, and coherence length of cooper pairs of YH, which is one of the new superconductors called Clathrate Yttrium hydride which has cubic structure that appears at high pressures. The calculation was conducted using ABINIT code in the framework of the functional theory of density (DFT), and the density functional perturbation theory (DFPT), It is characterized by high temperature at high pressure and this is what we have observed in the results obtained, although our results seem to be somewhat distant from the available data, we are not out of the general trend frame of this type of superconductors.
note de thèses :	Mémoire de master en physique

Theoretical study on YH6 cubic system based on ab initio methods [texte manuscrit] / Anfal Begagra, Auteur ; Salah Khenchoul, Directeur de thèse . - Laghouat : Université Amar Telidji - Département des sciences de la matière, 2020 . - 54 p. ; 30 cm. + 1 disque optique numérique (CD-ROM).
Option : Applied Physics
Langues : Anglais

Mots-clés :	Structural properties  Vibrational properties  Critical temperature  Superconducting gap  Coherence length of cooper pair  Superconductors  Clathrate Yttrium hydride  Cubic structure  ABINIT  DFT  DFPT
Résumé :	The objective of this work is calculation of the structural, andVibrational properties in addition to critical temperature, superconducting gap, and coherence length of cooper pairs of YH, which is one of the new superconductors called Clathrate Yttrium hydride which has cubic structure that appears at high pressures. The calculation was conducted using ABINIT code in the framework of the functional theory of density (DFT), and the density functional perturbation theory (DFPT), It is characterized by high temperature at high pressure and this is what we have observed in the results obtained, although our results seem to be somewhat distant from the available data, we are not out of the general trend frame of this type of superconductors.
note de thèses :	Mémoire de master en physique