Investigations on magnetodielectric and magnetoelectric properties of CNFO-BST composite

The paper reports the synthesis of Ba1-xSrxTiO3 (BSTx) for x = 0.20 and 0.30 via hydrothermal route followed by microwave sintering to result into the BST nano particles of size nearly 60 nm. The Co0.9Ni0.1Fe2O4 (CNFO) is also synthesized using hydrothermal route to achieve Nano-crystalline particles. The composites yCNFO-(1-y)BSTx with y = 0.2,0.3 & 0.4 and x = 0.2 and 0.3 are investigated for the variation of dielectric constant as a function of applied magnetic field (H) for the frequency between 100 Hz and 1 MHz. The maximum value of Magnetocapacitance (MC) is −6% for the 0.20CNFO-0.8BST0.20 while the maximum value of Magnetoelectric Coefficient (α) is 5 mV/Oe.cm for the 0.20CNFO-0.8BST0.30.