title: Magnetic properties of ZnO nanoparticles.
abstract: We experimentally show that it is possible to induce room-temperature ferromagnetic-like behavior in ZnO nanoparticles without doping with magnetic impurities but simply inducing an alteration of their electronic configuration. Capping ZnO nanoparticles ( approximately 10 nm size) with different organic molecules produces an alteration of their electronic configuration that depends on the particular molecule, as evidenced by photoluminescence and X-ray absorption spectroscopies and altering their magnetic properties that varies from diamagnetic to ferromagnetic-like behavior.
authors.affiliation: Instituto de Magnetismo Aplicado (UCM-ADIF-CSIC), P.O. Box 155, 28230 Las Rozas, Madrid, Spain. miguelag@adif.es
authors.forename: M A
authors.initials: MA
authors.lastname: Garcia
authors.forename: J M
authors.initials: JM
authors.lastname: Merino
authors.forename: E
authors.initials: E
authors.lastname: Fernández Pinel
authors.forename: A
authors.initials: A
authors.lastname: Quesada
authors.forename: J
authors.initials: J
authors.lastname: de la Venta
authors.forename: M L
authors.initials: ML
authors.lastname: Ruíz González
authors.forename: G R
authors.initials: GR
authors.lastname: Castro
authors.forename: P
authors.initials: P
authors.lastname: Crespo
authors.forename: J
authors.initials: J
authors.lastname: Llopis
authors.forename: J M
authors.initials: JM
authors.lastname: González-Calbet
authors.forename: A
authors.initials: A
authors.lastname: Hernando
mesh_terms: D003460:Crystallization / Q000379:methods*; D046911:Macromolecular Substances / Q000737:chemistry; D008280:Magnetics; D008422:Materials Testing; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D036103:Nanotechnology / Q000379:methods*; D010316:Particle Size; D013499:Surface Properties; D015034:Zinc Oxide / Q000737:chemistry*
chemical_list: D046911:Macromolecular Substances; D015034:Zinc Oxide