Existence of the multiferroic property at room temperature in Ti doped CoFe 2O 4

Abstract

The appearance of ferroelectricity has been observed in magnetically ordered Co(Fe 1-xTi x) 2O 4 at room temperature. Magnetization and dielectric constant is found to increase with Ti doping. It is observed from an X-ray Photoemission Spectroscopy study that Ti goes to the octahedral site with (4) ionic state. An MH hysteresis curve at room temperature shows the ferrimagnetic ordering and a PE loop at room temperature clearly indicates the existence of ferroelectricity. © 2011 Elsevier Ltd. All rights reserved.