Cubic spinel magnetite x-ray diffraction pattern.
Reversible magnetization curves of superparamagnetic (a) magnetite nanoparticles and (b) magnetic fluid.
ac magnetic susceptibility real and imaginary components of magnetic fluid.
(a) Magnetic fluid component as a function of temperature for measuring frequency of 10 Hz. (b) Vogel–Fulcher law fitting for spin-glass-like data with .
(a ) Magnetic fluid ratio as a function of temperature for measuring frequency of 10 Hz. (b) Arrhenius law fitting for magnetic aftereffect data.
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