Modulus spectroscopy for the detection of parallel electric responses in electroceramics

Impedance spectroscopy has become one of the most versatile and essential investigation methods concerning electrical properties materials for electronic energy applications. Deriving knowledge about physical mechanisms, however, often demands excellent expertise in evaluating spectra. Investigating different representations same data set can help elucidate underlying physics, but this is rarely applied. In work, importance using modulus representation to identify parallel electric responses rationalized. Those result from conducting pathways, e.g. , at grain boundaries, or regions with differing permittivity, composites. Qualitative quantitative be obtained, as it illustrated based on experimental electroceramics respective simulation results finite element method. The findings should study intricate chemical structural heterogeneity. • Analysis dielectric conductive pathways possible via analysis. Lead-free dielectrics ferroelectrics are prone develop processes due inhomogeneity. response polar nanoregions quantified. approach applied any electrically material.