Regular Article

Effect of Fe doping on the electrical and magnetic properties of Sn_1−xFe_xO₂ nanoparticles

¹ Physics Department, Faculty of Science, Sohag University, 82524 Sohag, Egypt
² Physics Department, College of Science & Arts, Najran University, P.O. Box 1988 Najran, Saudi Arabia

^a e-mail: ahmedhakeem75@yahoo.com

Received: 29 October 2015
Revised: 1 February 2016
Accepted: 4 February 2016
Published online: 9 March 2016

Abstract

In this work, Sn_1−xFe_xO₂ (x = 0.00, 0.02, 0.04, 0.06 and 0.08) nanoparticles have been synthesized using ball-milling method. The average diameter of the nanoparticles decreases from 487 to 216 nm by adding Fe₂O₃ to the tin dioxide. The X-ray diffraction analyses confirms formation of tetragonal structure which is typical feature of SnO₂ compounds. Theoretical density was found to be larger than the corresponding physical one due to the porosity of the materials. The electrical resistivity versus temperature measurements confirm that the undoped and Fe doped SnO₂ nanoparticles are characterized with semiconducting behavior over the whole measurement range of temperature 300–473 K. The magnetic measurements confirm transformation from diamagnetic to ferromagnetic characteristics as Fe doping level reaches x = 0.06.