Abstract
Designing the new multifunctional ferromagnetic materials for multilayer chip inductor has attracted widespread interest in recent years. Co2Y strontium hexaferrites with composition of Sr2−xNdxCo2Fe12−yMnyO22 (for X = 0.00–0.1, Y = 0.00–1.0) were fabricated by the simple economical sol-gel autocombustion method. The surface morphology of the synthesized materials was investigated by using scanning electron microscopy and the particles were in plate-like shape. The magnetic properties calculated through hysteresis loops which were measured by vibrating sample magnetometer showed that the fabricated materials have typical properties related to ferromagnetic materials. The observed values of saturation magnetization were found in the range of 64.43–35.11 (emu/g). The observed decline in the values of magnetic parameters with the substituents (Nd-Mn) resulted due to suppression of magnetic superexchange interactions. The dielectric parameters including impedance and modulus investigation reveal that there are grains where the grain boundaries might play an important role in the conduction mechanism and the same may also be concluded from semicircle shape of Cole-Cole plots.
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