Contrasting behavior of the structural and magnetic properties in Mn- and Fe-doped In₂O₃ films
Feng, Qi · Blythe, Harry J · Fox, A Mark · Gehring, Gillian A · Jiang, Feng-Xian · Xu, Xiao-Hong · Heald, Steve M
Original · EN
We have observed room temperature ferromagnetism (FM) in In₂O₃ thin films doped with either 5 at.% Mn or Fe, prepared by pulsed laser deposition (PLD) 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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