Structural, optical and dielectric properties of Cu<sub>1.5</sub>Mn<sub>1.5</sub>O<sub>4</sub> spinel nanoparticles
Abir Hadded, J. Massoudi, E. Dhahri, K. Khirouni, B. F. O. Costa
Abstract
Hz. This suggested hoping conduction due to three theoretical models. The latter can be attributed to the correlated barrier hopping (CBH) model in region I, overlapping large polaron tunneling (OLPT) in region II and non-overlapping small polaron tunneling (NSPT) mechanism in region III. One dielectric relaxation is detected from the dielectric impedance and modulus, attributed to grain contributions. This behavior was confirmed by both Nyquist and Argand's plots of dielectric impedance at different measuring temperatures.
Topics & Concepts
Materials scienceDielectricDielectric spectroscopyRaman spectroscopyCrystallitePolaronSpinelAnalytical Chemistry (journal)Grain sizeSpectroscopyRelaxation (psychology)Condensed matter physicsChemistryOpticsPhysical chemistryPhysicsElectrochemistryOptoelectronicsElectrodeMetallurgyElectronQuantum mechanicsPsychologySocial psychologyChromatographyElectrical and Thermal Properties of MaterialsMagnetic Properties and Synthesis of FerritesMicrowave Dielectric Ceramics Synthesis