Effect of Zn-substitution on magnetic structure of cobalt ferrite nanoparticles

Sonja Jovanović; Nader Yaacoub; Sawssen Slimani; Marjeta Maček Kržmanc; Marija Vukomanović; Matjaž Spreitzer; Davide Peddis; Alexander Omelyanchik

doi:10.1063/5.0226884

Effect of Zn-substitution on magnetic structure of cobalt ferrite nanoparticles

J Chem Phys. 2024 Sep 28;161(12):124712. doi: 10.1063/5.0226884.

Authors

Sonja Jovanović^{1

2}, Nader Yaacoub³, Sawssen Slimani^{4

5}, Marjeta Maček Kržmanc², Marija Vukomanović², Matjaž Spreitzer², Davide Peddis^{4

5}, Alexander Omelyanchik^{4

5}

Affiliations

¹ Laboratory of Physics, Vinča Institute of Nuclear Sciences-National Institute of the Republic of Serbia, University of Belgrade, Mike Petrovića Alasa 12-14, Belgrade, Serbia.
² Advanced Materials Department, Jožef Stefan Institute, Jamova cesta 39, Ljubljana, Slovenia.
³ IMMM, Le Mans Université, CNRS (UMR-6283), Avenue Olivier Messiaen, F-72085 Le Mans, cedex 9, France.
⁴ Institute of Structure of Matter (ISM), nM2-Lab, National Research Council (CNR), Via Salaria, Km 29,300, Monterotondo Scalo, Roma 00015, Italy.
⁵ Dipartimento di Chimica e Chimica Industriale and INSTM, nM2-Lab, Universita` degli Studi di Genova, Via Dodecaneso 31, Genova 1-16146, Italy.

PMID: 39344887
DOI: 10.1063/5.0226884

Abstract

This study investigates the effects of Zn substitution on the magnetic properties of ∼5 nm cobalt ferrite nanoparticles (ZnxCo1-xFe2O4, where x = 0, 0.13, 0.34, and 0.55), demonstrating that Zn substitution induces complex changes in spin canting and prompts a redistribution of cations among the sublattices. We reconstructed the magnetic structure of these spinel ferrites by integrating the classical two-sublattice Néel model of ferrimagnetism with the data obtained from 57Fe Mössbauer spectrometry. Consequently, this research provides a comprehensive understanding of how Zn substitution tunes the magnetic properties of CoFe2O4 nanoparticles, offering valuable insights into the development of magnetic materials with tailored properties for various applications.