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Contrasting behavior of the structural and magnetic properties in Mn- and Fe-doped In2O3 films

Author(s): Qi Feng | Harry J. Blythe | Feng-Xian Jiang | Xiao-Hong Xu | Steve M. Heald | A. Mark Fox | Gillian A. Gehring

Journal: APL Materials
ISSN 2166-532X

Volume: 1;
Issue: 2;
Start page: 022107;
Date: 2013;
Original page

We have observed room temperature ferromagnetism in In2O3 thin films doped with either 5 at.% Mn or Fe, prepared by pulsed laser deposition at substrate temperatures ranging from 300 to 600 °C. The dependence of saturation magnetization on grain size was investigated for both types of In2O3 films. It is revealed that, for the Mn-doped films, the magnetization was largest with small grains, indicating the importance of grain boundaries. In contrast, for Fe-doped films, the largest magnetization was observed with large grains.
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