Effect of Magnetic Anisotropy on Magnetic Thermal Induction of Mn0.3Zn0.3CoxFe2.4-xO4 Nanoparticles

Mn0.3Zn0.3CoxFe2.4-xO4series magnetic nanoparticles are prepared by the high-temperature organic solvent method, and Mn0.3Zn0.3CoxFe2.4-xO4@SiO2composite nanoparticles are prepared by the reverse microemulsion method. The as-prepared samples are characterized, and the results show that the magnetic anisotropy constant of nanoparticles increases with the cobalt content, and the magnetic thermal induction shows a trend of increasing first and then decreasing. The optimal magnetic thermal induction is obtained at x = 0.12 with a specific loss power of 2086 w/gmetal, which is a bright prospect in clinical magnetic hyperthermia.