Study of ferromagnetic and ferroelectric properties of nanocrystalline Bi2Mn4O10

Abstract Nano-crystalline bismuth manganese oxide Bi 2 Mn 4 O 10 was prepared from 3 and MnO by mechanochemical technique at different milling times followed heat treatment 1073 K. The crystal structural were obtained using X-ray diffraction (XRD) TEM. We the variation of crystallite size micro-strain with time. magnetic parameters include saturation magnetization, coercivity squareness ratio vibrating sample magnetometer (VSM). Each coercive field, Squareness magnetization increased increasing electrical conduction samples evaluated AC conductivity measurements temperature, dielectric plotted against temperature frequencies. mechanism is described correlated barrier hopping model (CBH). recoverable energy density loss to calculate storage efficiency.