Synthesis and electrical characterization of BMN-BFO electronic material system
摘要
The detailed analysis of structural, dielectric, and phase-shifting properties of the BMN-BFO [Ba(MgO1/3Nb2/3)O3—BiFeO3] electronic system has been carried out. The desired dielectric material is synthesized by a typical solid-state grinding route by using relevant raw powders with an accurate stoichiometric proportion. The structural inference of the mixture sample is outlined by the X-ray diffraction. The structure of the dielectric mixture is found to be hexagonal (a = b = 5.5990 Å, c = 13.9400 Å). The chemical compositions are identified by the energy-dispersive X-ray technique. The surface morphology is revealed from scanning electron microscope (SEM) that demonstrates the uniform dispersion of grains. The dielectric, impedance, electric modulus, and conductivity properties are illustrated through a systematic investigation of the relationship between temperature and variable frequency. Apart from this, the electrical characteristics over the temperature range of 35 °C to 450 °C have also been investigated. The acquired result of the solid mixture sample depicts relaxation phenomena that deviate from ideal Debye-type behavior. The processed BMN-BFO dielectric mixture has been identified as a competitive entity with notable electrical attributes for innovative multifunctional electronic applications that are being predicted, referring to future applications.