Structural, Optical, and Magnetic Properties of MgFe₂O₄ Synthesized with Addition of Copper

Abstract

The addition of Cu on the structural, optical, and magnetic properties of MgFe₂O₄ prepared by a ceramic technique has been investigated. The Me-O and Me-Me bond lengths increase with the addition of Cu. IR spectra show bands at 540 and 460 cm⁻¹, which confirm Fe³⁺ ions in both tetrahedral and octahedral sites. Room temperature Mössbauer spectra of MgFe₂O₄ compounds in zero applied magnetic field show the general trend of increasing hyperfine value and A-B exchange interaction caused by Mg²⁺ ion with Fe³⁺ ions. The addition of copper increases the isomer shift and quadruple splitting of the doublet.

Keywords:

• Cu-added MgFe₂O₄
• exchange interaction
• magnesium ferrite
• magnetic properties
• oxygen positional parameter

Acknowledgments

The authors are thankful to the Director, CECRI, and staff of the EPM Division for their support. The authors are grateful to Prof. Ajith Gupta, and Mr. Amit Saraiya of Inter-University Consortium, Indore, for carrying out the Mössbauer measurements.