Abstract
Magnetic ferrite materials have been extensively studied for a range of technological applications, such as magnetic motors, recording media, and millimetre-wave devices. In this context, the nanosized epsilon phase of Fe2O3 (ϵ-Fe2O3) attracts significant attention due to its high coercive field at room temperature. Here, we report the in-situ aerogel nanoreactor growth of magnetic ϵ-Fe2O3 nanoparticles, exhibiting a coercive field (Hc) of 4000 Oe. We show that the control of nanoreactor plays an important role in the growth of ϵ-Fe2O3 nanoparticles. The findings provide a versatile reaction pathway for the growth of magnetically hard ferrite nanoparticles.
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