Magneto-dielectric and Magneto-resistive in the Mixed Spinel MgFe2O4
B. Santhosh Kumar, N. Praveen Shankar, N. Aparna devi, and C., Venkateswaran
TL;DR
This study synthesizes MgFe2O4 spinel using ball-milling assisted sintering, confirming its cubic structure and soft ferrimagnetic properties, and demonstrates room-temperature magneto-dielectric and magneto-resistive coupling.
Contribution
It introduces a synthesis method for MgFe2O4 and provides experimental evidence of room-temperature magneto-dielectric and magneto-resistive coupling in this material.
Findings
Cubic MgFe2O4 confirmed by X-ray diffraction.
Soft ferrimagnetic behavior at room temperature.
Magneto-dielectric and magneto-resistive coupling observed at 500 Oe.
Abstract
The mixed spinel, MgFe2O4 has been synthesized by ball-milling assisted sintering method. X-ray diffraction study confirms formation of cubic MgFe2O4 and the lattice parameter values calculated are a = b = c = 8.369(3) {\AA}. Vibrating sample magnetometer measurements at room temperature shows a soft ferrimagnetic nature. Magneto-Dielectric and Magneto-Restive plots confirm coupling at room temperature in the prepared MgFe2O4. The peak at 500 Oe in the MD plot is due to the canting of Fe3+ ions distributed in octahedral and tetrahedral sites.
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