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Half metallic ferromagnetic behavior in (Ga, Cr)N and (Ga, Cr, V)N compounds for spintronic technologies: Ab initio and Monte Carlo methods
Univ Moulay Ismail, Fac Sci, Phys Dept, Unite Associee CNRST URAC 08,LP2MS, BP 11201, Meknes, Morocco.
Univ Moulay Ismail, Fac Sci, Phys Dept, Unite Associee CNRST URAC 08,LP2MS, BP 11201, Meknes, Morocco.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Theory. Univ Moulay Ismail, Fac Sci, Phys Dept, Unite Associee CNRST URAC 08,LP2MS, BP 11201, Meknes, Morocco.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Theory. Univ Moulay Ismail, Fac Sci, Phys Dept, Unite Associee CNRST URAC 08,LP2MS, BP 11201, Meknes, Morocco;Max Planck Inst Phys Complexer Syst, Nothnitzer Str 38, D-01187 Dresden, Germany.
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2019 (English)In: Journal of Magnetism and Magnetic Materials, ISSN 0304-8853, E-ISSN 1873-4766, Vol. 477, p. 220-225Article in journal (Refereed) Published
Abstract [en]

In this article, we investigate the magnetic and electronic properties of GaN doped with simple and double impurities utilizing Ab initio and Monte Carlo studies. We have predicted that (Ga, Cr)N and (Ga, Cr, V)N compounds exhibit ferromagnetic- and halfmetallic-behavior with 100% spin polarization at the Fermi level. Moreover, we have found that Ga1-xCrxN and Ga1-2xCrxVxN (x = 0.04, 0.05 and 0.06) show a second order ferromagnetic transition and that their T-c is above room temperature. These predictions make (Ga, Cr)N and (Ga, Cr, V)N compounds strong candidates for spintronic technologies.

Place, publisher, year, edition, pages
2019. Vol. 477, p. 220-225
Keywords [en]
Spintronic, Gallium nitride, Diluted magnetic semiconductors, Ab initio calculations, Monte Carlo method
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:uu:diva-379017DOI: 10.1016/j.jmmm.2019.01.060ISI: 000458874300035OAI: oai:DiVA.org:uu-379017DiVA, id: diva2:1295688
Funder
Swedish Research Council, dnr-348-2011-7264Swedish Research Council, URAC: 08Available from: 2019-03-12 Created: 2019-03-12 Last updated: 2019-03-12Bibliographically approved

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