Abstract
The magnetoelectric (ME) composites with varying ferromagnetic phase: 15% Ni0.95-xCoxMn0.05Fe2O4 (x = 0.01, 0.02 and 0.03) and ferroelectric phase: 85 % BaTiO3 are prepared. In XRD studies, two phases: piezomagnetic cubic phase and perovskite piezoelectric tetragonal phase are detected in resultant ME composites. The dielectric constant (έ) versus frequencies (10 Hz to 1 MHz) measurements for resultant ME composites at room temperature showed dispersion owing to the interfacial polarization of Maxwell-Wagner type. The temperature-dependent changes in dielectric constant (έ) and loss tangent (tan δ) are recorded at constant frequency. As a function of magnetic field intensity, the ME- conversion factor dc (ME)H is investigated. With varied molar ratios of the ME components, variations in dielectric properties and ME effect are observed. The highest value dc(ME)H = 0.610 mV/cm.Oe for ME- conversion factor is obtained in a ME composite consisting of 15% Ni0.95-xCoxMn0.05Fe2O4 + 85% BaTiO3 with x = 0.01.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
