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Electronic and Ferromagnetic Properties of 3d(V)-Doped (BaS) Barium Sulfide

  • Zoubida Addadi
  • Bendouma Doumi
  • Allel Mokaddem
  • Mohammed Elkeurti
  • Adlane Sayede
  • Abdelkader Tadjer
  • Fethallah Dahmane
Original Paper

Abstract

The objective of this study is to investigate the electronic structure and ferromagnetic properties of barium sulfide (BaS) doped with vanadium (V) impurity. The calculations were performed by using the first-principle calculations of density functional theory. The lattice constant of Ba1−x V x S decreases with increasing concentration (x) of the V atom. We have found that the Ba0.75 V 0.25S and Ba0.5 V 0.5S compounds are half-metallic ferromagnets with total magnetic moments of 3 μ B per V atom, while for high concentration x = 0.75, the Ba0.25 V 0.75S becomes nearly half metallic due to broadening of 3d (V) states in the gap. The exchange coupling between the 3d (V) levels and conduction bands is ferromagnetic, confirming the magnetic nature of Ba1−x V x S compounds.

Keywords

Exchange coupling p–d exchange splitting Half-metallic ferromagnetism Spintronics 

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Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  1. 1.Laboratoire des Etudes Physico-ChimiquesUniversité Dr. Tahar Moulay de SaïdaSaïdaAlgeria
  2. 2.Faculty of Sciences, Department of PhysicsDr. Tahar Moulay University of SaïdaSaïdaAlgeria
  3. 3.Theoretical Physics LaboratoryU.S.T.H.B.AlgiersAlgeria
  4. 4.Centre Universitaire Nour Bachir El BayadhEl BayadhAlgeria
  5. 5.Unité de Catalyse et Chimie du Solide (UCCS), UMR CNRS 8181, Faculté des SciencesUniversité d’ArtoisLensFrance
  6. 6.Modelling and Simulation in Materials Science Laboratory, Physics DepartmentDjillali Liabes University of Sidi Bel-AbbesSidi Bel-AbbesAlgeria
  7. 7.Institut des Sciences et Technologies, Département Sciences de la MatièreCentre Universitaire TissemsiltTissemsiltAlgeria

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