“…Nanomaterials are defined as at least one dimension in the three-dimensional space within the range of 1-100 nm and have been extensively researched due to their excellent properties such as quantum size effect, small size effect, surface effect, and macroscopic quantum tunneling effect [1][2][3]. As a special kind of nanomaterials, magnetic nanomaterials have been widely studied by scientists because they not only have the properties of nanomaterials but also have excellent magnetic properties, which have been widely applied in many fields, such as environment [4][5][6][7], biomedicine [8][9][10], and ceramics [11], especially in the biomedical field, such as tumor therapy [12,13], magnetothermal therapy [14], sensor [15], magnetic resonance imaging [16], drug delivery [17], etc.…”