Ab initio calculations of half-metallic ferromagnetism in (VN)1/(AlN)1, (VN)1/(GaN)1 and (VN)1/(InN)1 superlattices

M. J. Espitia Rico, J. H F Díaz, C. Ortega López

Research output: Contribution to journalArticle

Abstract

We employed density functional theory (DFT) in order to study the electronic and magnetic properties of (VN)1/(AlN)1, (VN)1/(GaN)1 and (VN)1/(InN)1 superlattices, in the wurtzite structure. The calculations were carried out using the pseudopotential method, employed exactly as implemented in Quantum Espresso code. For the description of the electron-electron interaction, generalized gradient approximation (GGA) was used. We found that the superlattices exhibit a half-metallic ferromagnetic behaviour and all the superlattices have magnetic properties with a magnetic moment of 2μ β/cell. Analysis of the density of states show that ferromagnetic behaviour of the superlattices can be explained by the strong hybridization between states V-d and N-p crossing of the Fermi level. Due these properties the superlattices can be potentially used in the field of spintronics or spin injectors.

LanguageEnglish
Article number012069
JournalJournal of Physics: Conference Series
Volume687
Issue number1
DOIs
Publication statusPublished - Feb 12 2016

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ferromagnetism
superlattices
magnetic properties
injectors
wurtzite
pseudopotentials
electron scattering
magnetic moments
density functional theory
gradients
cells
approximation
electronics
electrons

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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Ab initio calculations of half-metallic ferromagnetism in (VN)1/(AlN)1, (VN)1/(GaN)1 and (VN)1/(InN)1 superlattices. / Espitia Rico, M. J.; Díaz, J. H F; Ortega López, C.

In: Journal of Physics: Conference Series, Vol. 687, No. 1, 012069, 12.02.2016.

Research output: Contribution to journalArticle

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