رسائل دكتوراة
French
2015
CONTRIBUTION A L'ÉTUDE DES PROPRIÉTÉS PHYSICOCHIMIQUES DES ALLIAGES D'HEUSLER
Bouhalouane Amrani, Hamza Abbassa
كلية العلوم الدقيقة والاعلام الآلي-جامعة عبد الحميد بن باديس مستغانم · الجزائر
By mean of different numerical methods, many theoretical studies predict severalintermetallic Heusler compounds to be half metals at room temperature. This class ofmaterials is usually in base of spintronic applications or devices, where a relatively high Curietemperature is required in this field of applications, and 100% spin polarization at Fermi levelis desirable.This kind of compounds is classified in two categories: Half-Heusler and Full-Heusler,according to several crystallographic structures and magnetic orders.Among those compounds, a ferromagnetic class based on cobalt (Co) is promising, whichreceived an importance attention in several theoretical studies.In this work, we have used the ab initio method in order to explore structural, elastic,mechanic, electronic, magnetic and thermodynamic properties of compounds based on Co,Rh, Ru and NiMn(Sn,Sb) Half-Heusler.