EPR STUDIES OF CD SUBSTITUTED MN ZN NANOFERRITES

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VENKATARAJU CHIDAMBARAM; PAULSINGH R.

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Journal: International Journal of Nano Dimension Year:2015 | Volume:6 | Issue:3 Page(s): 255-261

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Title

EPR STUDIES OF CD SUBSTITUTED MN ZN NANOFERRITES

Author(s)

VENKATARAJU CHIDAMBARAM | PAULSINGH R. | Issue Writer Certificate

Keywords

NANOSTRUCTURED MATERIALS

CHEMICAL SYNTHESIS

ELECTRON PARAMAGNETIC RESONANCE (EPR)

MAGNETIC PROPERTY

SCANNING ELECTRON MICROSCOPE (SEM)

Abstract

Nanoparticles of Mn0.5Zn0.5-xCdxFe2O4 with x varying from x=0.0 to 0.3 were prepared by wet chemical co-precipitation method. The structural and magnetic properties were studied by using X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM), Transmission Electron Microscopy (TEM) and Electron Paramagnetic Resonance (EPR) technique. The lattice constant increases with increase in Cd content. This increase in the lattice constant is due to larger ionic radii of the Cd2+ (0.97 Ao) ions as compared to Fe3+ (0.64 Ao) ions. The intensities of the planes (220) and (440), increases with increasing Cd2+ion concentration. This shows that Cd2+ ions occupy tetrahedral A sites and octahedral B sites in the nano dimension against their chemical preference for A site. The line width (DHpp) and the g value of the Electron paramagnetic resonance (EPR) signal decreases with increase in the Cd content. The magnetic moment of all the samples up to x=0.2 calculated from EPR studies are lower when compared to the theoretical values. This lower value of magnetic moment confirms the existence of non collinear magnetic structure arising due to significant amount of spin disorder existing at B site.

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References

LOW TEMPERATURE SYNTHESIS OF NANO SIZED MN(1-X) ZNXFE2O4 FERRITES AND THEIR CHARACTERIZATION

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APA: Copy

VENKATARAJU, CHIDAMBARAM, & PAULSINGH, R.. (2015). EPR STUDIES OF CD SUBSTITUTED MN ZN NANOFERRITES. INTERNATIONAL JOURNAL OF NANO DIMENSION (IJND), 6(3), 255-261. SID. https://sid.ir/paper/322237/en

Vancouver: Copy

VENKATARAJU CHIDAMBARAM, PAULSINGH R.. EPR STUDIES OF CD SUBSTITUTED MN ZN NANOFERRITES. INTERNATIONAL JOURNAL OF NANO DIMENSION (IJND)[Internet]. 2015;6(3):255-261. Available from: https://sid.ir/paper/322237/en

IEEE: Copy

CHIDAMBARAM VENKATARAJU, and R. PAULSINGH, “EPR STUDIES OF CD SUBSTITUTED MN ZN NANOFERRITES,” INTERNATIONAL JOURNAL OF NANO DIMENSION (IJND), vol. 6, no. 3, pp. 255–261, 2015, [Online]. Available: https://sid.ir/paper/322237/en

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