Room-temperature ferromagnetism in Mn and Fe codoped In2O3

G. Peleckis, University of Wollongong
X. L. Wang, University of Wollongong
S. X. Dou, University of Wollongong

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This article was originally published as: Peleckis, G, Wang, XL & Dou, SX, Room-temperature ferromagnetism in Mn and Fe codoped In2O3, Applied Physics Letters, 2006, 88, 132507. Original journal available here.

Abstract

The synthesis and characterization of polycrystalline room-temperature ferromagnetic semiconductor (In0.9Fe0.1–xMnx)2O3 (x=0–0.1) oxide are reported. All of the samples with intermediate x values are ferromagnetic at room temperature. The highest saturation magnetization moment at 300 K per total amount of magnetic ion is reached in the (In0.9Fe0.04Mn0.06)2O3 sample. The lattice constant a increases linearly with increasing Mn content. Fe-only doped samples were paramagnetic, while a Mn-only doped sample was found to be ferromagnetic below TC=46 K.