Perspective of Fe₃O₄ Nanoparticles Role in Biomedical Applications

Table 3

The critical size of transform to superparamagnetic state for some common magnetic materials.

Magnetic material	Fe3O4	CoFe2O3	NiFe2O3	MnFe2O3
(nm)	23	15	27	25

: critical size of transfer to superparamagnetic state.