Electromagnetic wave absorbing properties of In–Sn/rGO composites supported by impurity defect

Crystal structure engineering of GdFeO3/Mxene composites with excellent electromagnetic wave absorption: Role of phase transition and high polarizability

“…At very high frequencies, the magnetic moments no longer follow the magnetic eld at all and become completely randomized. At this point, the MD constant approaches zero [22]. From Fig.…”

“…From Fig. 7e, one distinct satellite around 719 eV near Fe2p 3/2 is originated from the dynamic charge transfer between Fe 3+ →Fe 2+ which is common in other transition metal compounds [22]. Another relative weak satellite around 707 eV near Fe2p 1/2 peak reveals the existence of the Fe 2+ state even though only the Fe 3+ is present in the original GFO.…”

“…The layer structure and the combination of different elements in MXene enables the formation of a conductive network, leading to improved conductivity and electromagnetic wave absorption performance [14]. The high surface area is one of the most attractive properties of MXene which provides a large contact area between the material and EM waves, resulting in e cient absorption [20][21][22][23]. MXene has a high conductivity and low dielectric constant, which means it can absorb a wide range of EM waves, from radio waves to microwave and even terahertz waves.…”

“…Based on its two-dimensional morphology and surface functional groups, MXene/ nanomagnetic composites were synthesized to enhance its absorption performance. For example, MXene/Ni-CNTs [8], MXene-rGO/CoNi [22], MXene/Fe 3 O 4 [23], MXene/CoFe 2 O 4 [24], MXene/FeCo composites [25].…”