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Transmission electron microscopy image of barium ferrite having rodlike structure of diameter [Fig. 1(a)] and vibrating sample magnetometer plots of barium ferrite and polyaniline composites having different volume fraction ratio of barium ferrite 1:1; 1:2 and 1:3 [Fig. 1(b)].
Variation in the EMI shielding effectiveness, and of polyaniline composites having different weight ratios of barium ferrite: PBF21, PBF11, PBF12, and PBF13, with frequency.
Dependence of as a function of while the inset shows the variation in with the increase in frequency [Fig. 3(a)] and dependence of as function of while the inset shows the change in skin depth with the increase in frequency for the sample PBF13.
Dielectric constant (curve a) and dielectric loss (curve b) of PBF21, PBF11, PBF12, and PBF13 measured in Ku band as a function of frequency.
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