Microwave Heating of Oxidized Iron Powders in Ferromagnetic Resonance Mode
摘要
Abstract
By the example of α-Fe2O3 hematite, 5Fe2O3⋅9H2O ferrihydrite, and γ-Fe2O3 maghemite powders, a microwave-radiation-induced powder system temperature growth ΔTmax of several degrees has been measured in the ferromagnetic resonance mode at a frequency of 8.9 GHz. The powders heat up the most in the external field H coinciding with the ferromagnetic resonance field. The value of the ΔTmax effect depends on the magnetization of a powder material. The results obtained allow us to propose a new magnetic hyperthermia method for biomedical applications.