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Sun et al. Soft Sci. 2025, 5, 35 https://dx.doi.org/10.20517/ss.2025.21 Page 11 of 16

Figure 5. EM wave absorption performance. 3D RL diagrams for (A) FCNZ-500, (B) FCNZ-600, (C) FCNZ-700; 2D RL diagrams for (D)
FCNZ-500, (E) FCNZ-600, (F) FCNZ-700; impedance matching value of (G) FCNZ-500, (H) FCNZ-600, (I) FCNZ-700; (J) RL and
min
(K) EAB comparison between previous reports and this work. EM: Excellent electromagnetic; EAB: efficient absorption bandwidth.

intrinsic electric dipole in the ZnIn S shell layer undergoes charge displacement and reorientation under
2 4
the effect of an alternating electric field. At the same time, the high conductivity of FeCoNi core causes an
electric field in the ZnIn S shell layer, which increases the resistance of the dipole to steering and prolongs
2 4
the relaxation response time, and the free electrons of FeCoNi are injected into the defective sites of the
ZnIn S to increase the interfacial charge density and enhance the polarization strength. The synergistic
2 4
effect of interfacial polarization and dipolar polarization results in strong dielectric loss capacity, which can