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ISSN:2321-6212

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Enhanced magnetization in the BiFeO3-RMnO3 thin films


3rd International Conference on Magnetism and Magnetic Materials

October 22-23, 2018 | Rome, Italy

Lahmar Abdelilah

University of Picardie Jules Verne, France

ScientificTracks Abstracts: Res. Rev. J Mat. Sci

DOI: 10.4172/2321-6212-C6-029

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. Recent Publications 1. Lahmar A (2017) Multiferroic properties and frequency dependent coercive field in BiFeO3-LaMn0.5Co0.5O3 thin films. Journal of Magnetism and Magnetic Materials 439:30–37. 2. Lahmar A and Es Souni M (2015) Sequence of structural transitions in BiFeO3-RMnO3 thin films (R= rare earth), Ceramics International 41(4):5721–5726. 3. Lahmar A, et al. (2009) Effect of rare earth manganites on structural, ferroelectric and magnetic properties of BiFeO3. Applied Physics Letters 94(1):012903.

Biography

Lahmar Abdelilah received his Doctorate in Science in Materials Chemistry in 2007 from University of La Rochelle (France)/University Mohammed V (Morocco). Subsequently he worked at the Institute for Materials and Surface Technology (IMST) in Kiel (Germany) until 2012. Then he moved to Amiens, in Laboratory of Condensed Matter Physics, where he obtained his Habilitation thesis in 2017. His research interests encompass a broad range of multifunctional materials (multiferroic, electrocaloric, and magnetoelectrics). He has published more than 50 papers published in peer reviewed journals and contributed to numerous international conferences.

E-mail: abdel.ilah.lahmar@u-picardie.fr