Structural and electrical properties of y(Ni0.7Co0.2Cd0.1Fe2O4) + (1-y)Ba0.9Sr0.1TiO3 magnetoelectric composite

Pinjari, Rahimtulla Khajasab; Burange, Namdeo Mahadeo; Bhosale, Chandrakant Hari; Aldar, Bharat Appa

Abstract

Magnetoelectric (ME) composites of ferrite and ferroelectric phase with y(Ni0.7Co0.2Cd0.1Fe2O4) + (1-y)Ba0.9Sr0.1TiO3 with y=0.15, 0.30 and 0.45, respectively were prepared by standard double sintering ceramic method. The constituent phases, i.e., ferrite and ferroelectric phase presence were confirmed by X-ray diffraction pattern. Scanning electron micrographs were studied to understand microstructure of the prepared samples. The dielectric constant (έ) and loss tangent (tanδ) were measured as a function of frequency and also function of temperature at the fixed frequencies 1, 10, 100 kHz and 1 MHz. The AC conductivity was studied to understand conduction mechanism.

Keyword(s)

Magnetoelectric (ME) composite; Microstructure; Resistivity; Dielectric constant; Loss tangent; Conduction

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