Figure 1 | Scientific Reports

Figure 1

From: Highly efficient heat-dissipation power driven by ferromagnetic resonance in MFe2O4 (M = Fe, Mn, Ni) ferrite nanoparticles

Figure 1

(a) Schematic illustration of two different precession motions of magnetization vector M (red) around effective magnetic field vector Heff (green) with (blue) and without (purple) damping. (b) Single nanosphere of diameter 2R = 12 nm and MnFe2O4 with overall magnetizations’ orientation being deviated 45° from direction (+ z) of DC magnetic field HDC. (c) Micromagnetic simulations of the temporal oscillations of mx and my components of M during relaxation process under HDC = 1010 Oe for a 12 nm MnFe2O4 nanosphere. The inset shows the FFT power spectrum of the mx oscillation, wherein the peak position corresponds to the intrinsic precession frequency at the given strength of HDC.

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