Lahmar Abdelilah
University of Picardie Jules Verne, France
Title: Enhanced magnetization in the BiFeO3-RMnO3 thin films
Biography
Biography: Lahmar Abdelilah
Abstract
The monolithic BiFeO3 (BFO) is claimed to be multiferroic at room temperature, but only a weak magnetization and moderate polarization are observed. The co-doping of BFO is a way to improve electrical properties as well as magnetization. Thin films of the BiFeO3-RMnO3 (R = rare earth) system affords an interesting combination of good ferroelectric polarization and magnetization properties at room temperature that are a prerequisite for intrinsic multiferroism. Particularly, the addition of GdMnO3 leads to a substantial increase in magnetization that experimentally allows the determination of Néel temperature (TN). The origin of magnetization improvement will be discussed in terms of Gd substitution effects on octahedral distortion and tilting.