Investigation of transport mechanism through charge-active regions in Sm0.5Ca0.5MnO3

Understanding the charge carriers dynamics in the La0.55Ca0.45Mn0.8Nb0.2O3 perovskite: scaling of electrical conductivity spectra

“…However, the electrical transport properties, at the high-frequency range, are attributed to the short-range hopping of the charge carriers between potential barriers. [46][47][48] For numerous ceramics, the conductivity spectra can be investigated based on the Bruce law due to the occurrence of two power-law variations. 9 In this case, the appearance of a second power law behavior at higher frequencies, with a frequency exponent higher than the unity, can be due to the motion of the ions that undergo ineffective forwardbackward forward hopping, ensuing in a comparable orientational polarization contribution in the materials.…”