Abstract
Herein, Mn3+ doped InN nanoparticles (InN:Mn NPs) with room-temperature ferromagnetism were successfully synthesized via a vapor – solid phase nitriding reaction. The content of doped Mn3+ can effectively change the ferromagnetic properties of the as-synthesized samples. The saturation magnetization value of InN nanoparicles with various Mn3+ doping concentrations display a parabolic-like change as the Mn3+ doped content increase and reaches the top value of 0.2998 emu g−1 corresponding to the Mn3+ doped content of 0.91 at.% at room temperature. Magnetic properties originate from the coupling between N 2p orbital and Mn 3d orbital in the conduction bands. Compared with pure InN nanoparticles, half metallic ferromagnetic InN:Mn nanoparticles have smaller electric resistivity, larger hall coefficient and hall mobility, which will be a promising material in spintronic devices.
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