ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Probing the dc electrical resistivity and magnetic properties of mixed metal oxides Cr³⁺ substituted Mg–Zn ferrites

Ch. Komali, N. Murali, K. Rajkumar, A. Ramakrishna, S. Yonatan Mulushoa, D. Parajuli, P. N. V. V. L. Pramila Rani, Satheesh Ampolu, K. Chandra Mouli, and Y. Ramakrishna

Department of Engineering Physics, AUCE (A), Andhra University, Visakhapatnam, India

E-mail: muraliphdau@gmail.com

Received: 7 July 2022  Accepted: 29 August 2022

Abstract:

In this work, the solid-state reaction method was used for the preparation of Mg_1 − xZn_xFe_2 − yCr_yO₄ (x = y = 0.0, 0.2, 0.4 and 0.6) soft ferrites. XRD, SEM, FTIR, two probe methods, and VSM were used to measure their structural, morphological, vibrational, dc electrical and magnetic properties. All the ferrites were found to have a cubic spinel structure. The morphology of those nanoparticles was a uniform spherical shape. Magnesium is more conductive than zinc. As a result, increasing magnesium concentration decreased the value of DC electrical resistivity, thereby changing the magnetic parameters applicable in our daily life, such as magnetic moment, coercivity, and saturation magnetization.

Keywords: Spinel ferrites; XRD, SEM; DC resistivity; VSM

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-022-02466-9

Chemical Papers 77 (1) 109–117 (2023)