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. 2019 Mar 8;9:3957. doi: 10.1038/s41598-019-40336-9

Figure 5.

Figure 5

Microwave Absorbing Performance: (a) The calculated reflection losses for NiO&TiO2@C paraffin wax composite (mass ratio fixed at 1:2) samples with different thicknesses in the frequency range of 2–18 GHz, and the predicted matching thickness dmcal at the matching frequency f; (b) the corresponding dielectric and magnetic loss tangent based on the EM parameters; (c) Magnetic hysteresis loop of NiO&TiO2@C composites at room temperature (inset is the expanded low field hysteresis curve). (All curves are prepared with Origin (OriginLab, Northampton, MA)).