Novel CuFeS2 pellet behaves like a portable signal transporting network: studies of immittance

Abstract

A novel synthesis of CuFeS₂ nanoparticles has been demonstrated here. This is the first time we have thoroughly investigated the frequency dependent dielectric behavior of iron-chalcopyrite (CuFeS₂) pellets (with σ_d.c. = 47.27 × 10⁻⁹ S cm⁻¹). The room temperature a.c. conductivity of the material has also been investigated in the frequency range 200 Hz–2 MHz. Frequency dependent impedance analysis of the material indicates the charging and discharging behavior of the capacitor. Throughout this report we have analyzed the frequency dependent complex impedance, electric modulus and the loss tangent of the CuFeS₂ pallet as series and parallel combinations of capacitors and resistors.