Weak ferromagnetism in Cu-doped GaN
2007 (English)In: Applied Physics Letters, ISSN 0003-6951, Vol. 91, no 23, 232109- p.Article in journal (Refereed) Published
We employ density-functional theory within the generalized-gradient approximation to study the structural and electronic properties of Cu-doped GaN. We find that spin polarization on the Cu atoms in the GaN lattice is very small, leading to rather weak ferromagnetic behavior. We therefore suggest that Cu-doped GaN is unsuitable for spintronics applications. Our results refute previous calculations, which reported robust ferromagnetism in Cu-doped GaN.
Place, publisher, year, edition, pages
2007. Vol. 91, no 23, 232109- p.
IdentifiersURN: urn:nbn:se:uu:diva-113450DOI: 10.1063/1.2819602ISI: 000251450600053OAI: oai:DiVA.org:uu-113450DiVA: diva2:290854