Structural and impedance spectroscopy study of Mn1.5Y1.5CSr1.5Ba1.5 antiperovskite
Source abstract
Abstract
Abstract The experimental study on temperature and frequency dependent impedance spectroscopy study of an antiperovskite is being reported for the first time in this work as until now only the theoretical studies on dielectric behavior of various antiperovskites have been reported. Additionally, the effect of the presence of alkaline earth metals at A-site on the physical properties of an antiperovskite has been investigated for the first time. The structural and impedance characteristics of Mn1.5Y1.5CSr1.5Ba1.5 antiperovskite, synthesized by mixed oxide method, have been reported in this work. X-Ray Diffraction (XRD) analysis of this antiperovskite indexes it in a cubic crystal system with Ia 3 ‾ space group. The impedance spectroscopy study reveals that the persistent rise in the magnitude of relative dielectric constant (er) and dielectric loss (tan δ), with increasing temperature, is due to thermally activated charge carriers which results in the surge in conductivity of the sample. The dielectric dispersion in this antiperovskite is ascribed to Maxwell–Wagner form of interfacial polarization that is explained on the basis of Koop's phenomenological theory. The complex impedance analysis signifies a non-Debye relaxation process for this compound.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Thermal Expansion and Ionic Conductivity · Advanced Battery Materials and Technologies · Microwave Dielectric Ceramics Synthesis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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