Tuning magnetism of MnO by doping with 2p elements
2010 (English)In: Journal of Magnetism and Magnetic Materials, ISSN 0304-8853, Vol. 322, no 2, 253-256 p.Article in journal (Refereed) Published
We show that the antiferromagnetic coupling between Mn atoms in MnO can be tuned to a ferromagneticone by doping it with a small concentration of 2p elements like boron, carbon and nitrogen. Our ab initio density functional calculations in the Hubbard U framework show that the coupling between Mn atoms turns ferromagnetic for 3 at% B doping. B is found to be the most effective one in stabilizing ferromagnetism. We discuss the role of 2p states of the dopant atoms to explain the trend of ferromagnetism in MnO. (C) 2009 Elsevier B. V. All rights reserved.
Place, publisher, year, edition, pages
2010. Vol. 322, no 2, 253-256 p.
Diluted magnetic semiconductor, Spintronics, Ferromagnetism, Density functional theory
IdentifiersURN: urn:nbn:se:uu:diva-127454DOI: 10.1016/j.jmmm.2009.09.004ISI: 000271099800014OAI: oai:DiVA.org:uu-127454DiVA: diva2:330087