Arif Kurnia, Emriadi, Nandang Mufti, Zulhadjri
One – layered Ruddlesden-Popper phase Sr1+2xLa1-2xFe1-xNbxO4 doped with niobium was synthesized using a sol-gel method for various Nb concentrations (x=0, 0.1, 0.3, and 0.5). Single-phase samples could be observed with x=0 and 0.1, while x=0.3 and 0.5 contain additional phases. Microstructure results showed that the increase of niobium content corresponded to a decrease in the grain size of the samples. The magnetic measurements indicated that antiferromagnetic interactions of doped samples had decreased. The dielectric constant of the samples decreased as x increased due to the increase in conductivity. The origin of conduction in the samples might be caused by hopping conduction due to the mixed oxidation states of iron with charge +3 and +4. © 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Andalas, Padang, 25163, Indonesia; Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Malang, 65145, Indonesia
