Therefore, the magnetic loss is mostly due to spin resonance, and since Ni 0.6 Zn 0.4 Fe 2 O 4 is an insulator, the eddy current contribution is also not entirely significant but is frequency dependent.
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A Study on Microwave Absorption Properties of Carbon Black and Ni<sub>0.6</sub>Zn<sub>0.4</sub>Fe<sub>2</sub>O<sub>4</sub> Nanocomposites by Tuning the Matching-Absorbing Layer Structures.
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