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Titre: | Investigations of Structural, Electronic, and Half-metallic Ferromagnetic Properties in (Al, Ga, In)(1-x) M (x) N (M = Fe, Mn) Diluted Magnetic Semiconductors |
Auteur(s): | Doumi, B Tadjer, A Dahmane, F Mesri, D Aourag, H |
Date de publication: | mar-2013 |
Résumé: | We investigate the structural, electronic, and magnetic properties of (M = Fe, Mn)-based zinc blende diluted magnetic semiconductors (DMS) (Al, Ga, In)(1-x) M (x) N for (x=0.0625,0.125,0.25), using first-principles calculations with the full-potential linearized augmented plane waves (FP-LAPW) method within the density functional theory and local spin-density approximation. The analysis of electronic structures and magnetic properties show that (Al, Ga, In)(1-x) Fe (x) N at (x=0.0625,0.125,0.25) are magnetic insulators, and In1-x Mn (x) N at (x=0.0625,0.125) are metallic in nature. On the other hand the (Al, Ga)(1-x) Mn (x) N at (x=0.0625,0.125,0.25) and In0.75Mn0.25N are half-metallic ferromagnets with magnetic spin polarization of 100 %, where the ferromagnetic ground states result from a double-exchange mechanism, and these compounds are predicted to be good candidates for spintronic applications. |
URI/URL: | http://dspace.univ-tlemcen.dz/handle/112/5122 |
ISSN: | 1557-1939 |
Collection(s) : | Articles nationaux |
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Fichier | Description | Taille | Format | |
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Investigations-of-Structural.pdf | 177,24 kB | Adobe PDF | Voir/Ouvrir |
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