Anomalous relaxation and polarization switching in a nanocomposite based on potassium dihydrogen phosphate combined with silicon dioxide nanoparticles and multiwalled carbon nanotubes

For the purpose of filling a gap of previous studies, the present work aims to clarify anomalous relaxation and polarization switching of potassium dihydrogen phosphate under the influence of silicon dioxide nanoparticles and multiwalled carbon nanotubes by synthesizing a nanocomposite consisting of these substances. It is revealed that silicon dioxide and multiwalled carbon nanotubes have a significant influence on properties of potassium dihydrogen phosphate. The silicon dioxide resulted in an increase in relaxation time, activation energy and coercive field. Meanwhile, these values are reduced by the inclusion of the multiwalled carbon nanotubes. Additionally, silicon dioxide enhances the phase transition temperature that the multiwalled carbon nanotubes do not affect. The interactions between components will be analyzed to explain the obtained anomalies.