Magnetic properties of ZnO nanoparticles



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García, M.A. and Fernandez Pinel, E. and Quesada, A. and De la Venta, M. L. and Crespo del Arco, Patricia and Llopis, J. and Hernando Grande, Antonio (2007) Magnetic properties of ZnO nanoparticles. Nano letters, 7 (6). pp. 1489-1494. ISSN 1530-6984

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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 (similar to 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.

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© Amer Chemical Soc.
Trabajo firmado por once autores.
The authors acknowledge to Prof. D. R. Gamelin for a critic reading of the manuscript and his valuable comments. This work has been supported by the Spanish Ministry of Education and Science (project NAN2004-09125-C07-05) and the EU (project “BONSAI” LSHB-CT-2006-037639).

Uncontrolled Keywords:Quantum Dots; Doped ZnO; Ferromagnetism; Semiconductors; Temperature; Films; Nanocrystals; Luminescence; Monolayers
Subjects:Sciences > Physics > Materials
Sciences > Physics > Solid state physics
ID Code:41771
Deposited On:10 Mar 2017 17:01
Last Modified:14 Feb 2018 14:54

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