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Induced ferromagnetism in mechanically milled nanocrystalline In2O3 powder

Yara Galvão Gobato 1 ; Helena H. Carvalho 1 ; Marcelo Rizzo Piton 1 ; O.M. Lemine 2 ; M Bououdina 3 ; Helder VA Galeti 1 ; S. Souto 4 ; A Oliveira 1
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In this work, we have investigated structural, optical and magnetic properties of In2O3 powder samples prepared by mechanical milling process at diferent milling times. These samples have evidenced a ferromagnetism order at room temperature. The optical and magnetic properties were explained by the increase of quantum confinement, defects and strain effects after mechanical milling.