Effect of yttrium doping on structural and magnetic properties in cobalt ferrite nanoparticles prepared by the sol-gel auto-combustion procedure

D. T. Rahardjo, S. Budiawanti, S. Suharno, R. Suryana, A. Supriyanto, B. Purnama

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Cobalt ferrite compounds doped with yttrium element, namely CoYxFe1-xO4 with x = 0.06, 0.08, and 0.10, have been successfully prepared using the sol-gel automatic combustion method. The obtained samples were annealed at a temperature of 500 °C for 4 hours at standard atmospheric conditions. The scanning x-ray diffractometer (XRD) results showed that the samples had a face center cubic (fcc) crystal system with Fd-3m space group. XRD results also showed that the length of the lattice constant decreased with increasing the amount concentration of yttrium doping. The results of calculations using the Scherrer equation showed crystal sizes of 19.73 nm, 18.08 nm, and 13.23 nm for the yttrium doping concentration, x of 0.06, 0.08, and 0.10, respectively. The magnetic properties of the VSM results showed a decrease in magnetization saturation, namely 42.70 emu/g, 34.46 emu/g, and 28.08 emu/g, along with the increase in the concentration of x yttrium doping. The magnetization saturation decreased due to the substitution of the non-magnetic element yttrium on the magnetic cobalt ferrite nanoparticles reducing the total magnetic moment of the sample. The results of the Fourier Transform Infra-Red (FTIR) test showed that there were typical absorption curves at wave numbers (k) 573.85 cm-1, 570.95 cm-1, and 569.99 cm-1.

Original languageEnglish
Title of host publication2nd International Symposium on Physics and Applications 2021
EditorsRetno Asih, Nasori, Saifuddin, Muhammad Haekal
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735444676
DOIs
Publication statusPublished - 9 May 2023
Externally publishedYes
Event2nd International Symposium on Physics and Applications 2021, ISPA 2021 - Surabaya, Indonesia
Duration: 13 Nov 202114 Nov 2021

Publication series

NameAIP Conference Proceedings
Volume2604
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference2nd International Symposium on Physics and Applications 2021, ISPA 2021
Country/TerritoryIndonesia
CitySurabaya
Period13/11/2114/11/21

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