Magnetic Properties of ZnO Nanoparticles

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• 作者：M. A. Garcia ; J. M. Merino ; E. Fern&aacute ; ndez Pinel ; A. Quesada ; J. de la Venta ; M. L. Ruí ; z Gonz&aacute ; lez ; G. R. Castro ; P. Crespo ; J. Llopis ; J. M. Gonz&aacute ; lez-Calbet ; A. Hernando
• 刊名：Nano Letters
• 出版年：2007
• 出版时间：June 2007
• 年：2007
• 卷：7
• 期：6
• 页码：1489 - 1494
• 全文大小：301K
• 年卷期：v.7,no.6(June 2007)
• ISSN：1530-6992

文摘

We experimentally show that it is possible to induce room-temperature ferromagnetic-like behavior in ZnO nanoparticles without doping withmagnetic impurities but simply inducing an alteration of their electronic configuration. Capping ZnO nanoparticles (~10 nm size) with differentorganic molecules produces an alteration of their electronic configuration that depends on the particular molecule, as evidenced byphotoluminescence and X-ray absorption spectroscopies and altering their magnetic properties that varies from diamagnetic to ferromagnetic-like behavior.