“…Several methods are used to synthesize magnetic material; e.g., sol-gel [18,19], reverse micelle [20], co-precipitation process [21,22], γ-ray irradiation [23,24], non-aqueous route [25], microwave plasma synthesis [26], and hydrothermal treatment [27,28]. Among these methods, solvothermal is a powerful technique to control the morphology and size of the nanostructure [29][30][31][32][33][34]. By this method, we can control the size, crystallinity, and the shape distribution of metal oxide nanostructures and synthesize well-crystallized and mono-dispersed ferrite nanostructures.…”