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The SEM micrographs of Co nanoflakes (a), and the lateral view of a nanoflake (b); Bright field TEM image, the inserted image is the electron diffraction pattern (c); The XRD patterns of the Co nanoflakes powders (upper) and the disk compacted with Co nanoflakes (lower).
Magnetic hysteresis loops of the disk compacted from Co nanoflakes with different deviating angles between the applied magnetic field and the in-plane direction (a); Coercivity and remanence as a function of the angles between the applied magnetic field and the in-plane direction of Co nanoflakes (b).
Frequency dependence of the complex permittivity (a) and permeability (b), and the fitting curves of the real part (c) and imaginary part (d) of permeability.
Fitting parameters for permeability dispersion spectra. and are the experimental and fitted resonance frequency. is the intensity of the peak and is the damping coefficient.
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