fig6

Figure 6. (A) shows the impedance matching |Z| value and (B) shows the attenuation constant ɑ value; (C) Eddy current loss; (D) Wave impedance (η); (E) Reflection coefficient (R); (F) Comparison with other similar absorbing materials (data source Table 1); (G) The electromagnetic wave absorption mechanism of M-HHTP is explained here. NH: Nickel-only material; CH: cobalt-only material; NCH1: nickel-cobalt hybrid material (Ni²⁺:Co²⁺ = 1:3); NCH2: nickel-cobalt hybrid material (Ni²⁺:Co²⁺ = 3:1); NCH3: nickel-cobalt hybrid material (Ni²⁺:Co²⁺ = 1:1).