Establishing the correlation of negative permittivity and AC conductivity of La<sub>2−<i>x</i></sub>Sr<sub><i>x</i></sub>NiO<sub>4</sub> (<i>x</i> = 0, 0.1, 0.3, 1.0) for microwave shielding applications
Tarun Katheriya, Gurudeo Nirala, Shail Upadhyay
Abstract
In Sr-doped La 2 NiO 4 , we observed plasma-like negative permittivity behavior along with enhanced shielding effectiveness. The primary shielding mechanism was reflection, attributed to intense impedance mismatching.
Topics & Concepts
MicrowavePermittivityElectromagnetic shieldingMaterials scienceCondensed matter physicsConductivityElectrical resistivity and conductivityAnalytical Chemistry (journal)Nuclear magnetic resonanceChemistryPhysicsComposite materialDielectricOptoelectronicsPhysical chemistryChromatographyQuantum mechanicsMicrowave Dielectric Ceramics SynthesisElectrical Contact Performance and AnalysisElectromagnetic wave absorption materials