Bulletin of ANPA

Abstract submitted to ANPA Conference July 14–16, 2023

Volume 5, Number 1

Condensed Matter Physics and Material Science

Abstract ID: ANPA2023-N00074

Abstract:

ANPA2023-N00074: The Doping Effect of Aluminium on Nickel Site in Nano Structured Nickel Ferrite

Authors:

• Sunny Choudhary; University of Puerto Rico, San Juan, PR, USA, 00936

• Deepanshi Singh, Mohan Bhattarai; CCS University Meerut, India

• Ram S Katiyar; University of Puerto Rico San Juan, PR, USA, 00936

• Poonam Kumari; University of Puerto Rico San Juan, PR, USA, 00936

• ; Eternal University, Himachal Pradesh, India

Nanocrystalline aluminium doped nickel ferrite [Ni1-xAlxFe2O4 (x= 0, 1/2)] powders have been synthesized by using sol-gel method and the effect of aluminium content on the structural and dielectric properties has been studied. The X-ray diffraction (XRD) revealed that the powders obtained single phase with spinel structure. The lattice constant, interplanar distance and crystallite size decrease with increasing the doping of Al content. In the Raman analysis, there are five active bands present in the pure and aluminium doped nickel ferrite. Raman peaks over the region of 620-720 cm-1 represent the modes of tetrahedral group (T-site) and 450-620 cm-1 region corresponds to the modes of octahedral group (O-site) of ferrites. Dielectric behaviour of sample showed that the value of dielectric constant (ε′) and dielectric loss decreases with frequency and confirmed the general behavior of ferrites. The AC Conductivity (σac) decreased as the Al content increased in the samples. The phenomena explained on the basis that Al ions occupy the tetrahedral sites in the Ni ferrite, depleting the Ni3+ ion number present at the tetrahedral site.

To cite this abstract, use the following reference: https://anpaglobal.org/conference/2023/ANPA2023-N00074