Table 1 The comparison of the RLmin and effective frequency of other reported magnetic@dielectric composites.

From: CoxFey@C Composites with Tunable Atomic Ratios for Excellent Electromagnetic Absorption Properties

Sample

Thickness

RLmin

Effective Frequency

Ref.

FeNi@C

2.0 mm

−33.0 dB

<1.0 GHz

26

Fe3O4@C

2.0 mm

−20.7 dB

∼4.8 GHz

27

Fe@C

2.7 mm

−25.0 dB

<3.0 GHz

28

Ni@C

2.0 mm

−32.0 dB

∼4.3 GHz

29

Fe55Co45@C

2.5 mm

−15.8 dB

∼2.0 GHz

30

Fe60Co40@C

2.5 mm

−16.4 dB

∼5.0 GHz

30

This study

2.0 mm

−30.0 dB

∼7.0 GHz

 
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