Eur. Phys. J. Appl. Phys. 97, 71 (2022)
https://doi.org/10.1051/epjap/2022220197

Regular Article

Tuning half metallic ferromagnetic character in Rh and Tc doping Cerium dioxide for spintronic applications

¹ LPHE, Modeling & Simulations, Faculty of Science, Mohammed V University in Rabat, MB 1014 RP, Rabat, Morocco
² CPM, Centre of Physics and Mathematics, Faculty of Science, Mohammed V University in Rabat, Rabat, Morocco
³ Higher School of Education and Training of El Jadida (ESEF), Chouaib Doukkali University, El Jadida, Morocco

^* e-mail: lidaanahma@gmail.com

Received: 13 July 2022
Received in final form: 14 August 2022
Accepted: 16 August 2022
Published online: 4 October 2022

Abstract

In this paper, we investigate, for the first time, the effect of Rhoduim (Rh) and Technetium (Tc) on the electronic and magnetic properties of the dilute magnetic semiconductor CeO₂ using the Korringa-Kohn-Rostoker (KKR) method combined with the generalized gradient approximation (GGA). Three different concentrations (x = 0.05, 0.10, 0.15) are considered. The energy diagram of density of states reveals that the dopant changes CeO₂ from a non magnetic semiconductor to ferromagnetic half metals. Furthermore, the energy variation ensures the stability of the ferromagnetic phase due to the double exchange mechanism. The Curie temperature is evaluated and turns out to be above the ambient temperature for the different concentrations. The present findings model new potential candidates for spintronics.