Investigation of structural and electrical properties of 0.90PbMn_1/3Nb_2/3O₃-0.10PbTiO₃ ceramics prepared via solid-state reaction

The study focuses on the synthesis and characterization of 0.90PbMn_1/3Nb_2/3O₃-0.10PbTiO₃ (PMN-PT) to explore its structural and electrical properties for advanced material applications. The sample was prepared using the solid-state reaction method. Manganese doping was found to suppress the dielectric permittivity and enhance the relaxor behaviour. X-ray diffraction analysis indicated that the crystals belong to the monoclinic phase with a perovskite structure. Electrical characterization, utilizing temperature data and frequency-dependent impedance analysis, revealed a Negative Temperature Coefficient Resistance (NTCR) behaviour, commonly observed in semiconductors, deviating significantly from ideal Debye-type behaviour. These results underscore the potential of this material for applications requiring tailored electrical properties, such as the development of novel semiconductors or materials for use in electrical components with specific resistive characteristics.