CobaltMaghrebV1, Main, Exploration, bibRecord, 000342

Electronic Structure and Magnetic Properties of Zinc-Blende Co-Doped GaN with N Vacancies

Identifieur interne : 000342 ( Main/Exploration ); précédent : 000341; suivant : 000343

Electronic Structure and Magnetic Properties of Zinc-Blende Co-Doped GaN with N Vacancies

Auteurs : N. Mamouni [Maroc] ; A. Benyoussef [Maroc] ; A. El Kenz [Maroc] ; H. Ez-Zahraouy [Maroc] ; M. Bououdina [Bahreïn]

Source :

Journal of superconductivity and novel magnetism [ 1557-1939 ] ; 2013.

RBID : Pascal:13-0211039

Descripteurs français

Pascal (Inist)
- Structure électronique, Propriété magnétique, Codopage, Addition azote, Lacune, Système multiphase, Structure blende, Nitrure de gallium, Gallium, Défaut, Calcul KKR, Calcul CPA, Polarisation, Moment magnétique, Cobalt, GaN.
Wicri :
- topic : Cobalt.

English descriptors

KwdEn :
- Blende structure, CPA calculations, Cobalt, Codoping, Defects, Electronic structure, Gallium, Gallium nitride, KKR calculations, Magnetic moments, Magnetic properties, Multiphase system, Nitrogen additions, Polarization, Vacancies.

Abstract

The electronic structure and magnetic properties of zinc-blende structure of (Ga,Co)N phase with N vacancy defects are investigated using the Korringa-Kohn-Rostoker (KKR) method combined with coherent potential approximation (CPA). The results show that (Ga,Co)N phase is ferromagnetically polarized with an enhancement of the polarization and that the electronic structure can be modified simply by changing the concentration of N vacancies. Moreover, the (Ga,Co)N with high density of N vacancies shows a drastic increase of the magnetic moment of cobalt in the parent GaN compound, to reach a maximum value of 1.7 μ_B/Co at 8 at.%, which is in good agreement with the experimental values reported in the literature.

Affiliations:

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Le document en format XML

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<series><title level="j" type="main">Journal of superconductivity and novel magnetism</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Blende structure</term>
<term>CPA calculations</term>
<term>Cobalt</term>
<term>Codoping</term>
<term>Defects</term>
<term>Electronic structure</term>
<term>Gallium</term>
<term>Gallium nitride</term>
<term>KKR calculations</term>
<term>Magnetic moments</term>
<term>Magnetic properties</term>
<term>Multiphase system</term>
<term>Nitrogen additions</term>
<term>Polarization</term>
<term>Vacancies</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Structure électronique</term>
<term>Propriété magnétique</term>
<term>Codopage</term>
<term>Addition azote</term>
<term>Lacune</term>
<term>Système multiphase</term>
<term>Structure blende</term>
<term>Nitrure de gallium</term>
<term>Gallium</term>
<term>Défaut</term>
<term>Calcul KKR</term>
<term>Calcul CPA</term>
<term>Polarisation</term>
<term>Moment magnétique</term>
<term>Cobalt</term>
<term>GaN</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Cobalt</term>
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<front><div type="abstract" xml:lang="en">The electronic structure and magnetic properties of zinc-blende structure of (Ga,Co)N phase with N vacancy defects are investigated using the Korringa-Kohn-Rostoker (KKR) method combined with coherent potential approximation (CPA). The results show that (Ga,Co)N phase is ferromagnetically polarized with an enhancement of the polarization and that the electronic structure can be modified simply by changing the concentration of N vacancies. Moreover, the (Ga,Co)N with high density of N vacancies shows a drastic increase of the magnetic moment of cobalt in the parent GaN compound, to reach a maximum value of 1.7 μ<sub>B</sub>
/Co at 8 at.%, which is in good agreement with the experimental values reported in the literature.</div>
</front>
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<name sortKey="Ez Zahraouy, H" sort="Ez Zahraouy, H" uniqKey="Ez Zahraouy H" first="H." last="Ez-Zahraouy">H. Ez-Zahraouy</name>
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</record>

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Electronic Structure and Magnetic Properties of Zinc-Blende Co-Doped GaN with N Vacancies

Electronic Structure and Magnetic Properties of Zinc-Blende Co-Doped GaN with N Vacancies

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri