1. Department of Physics, Faculty of Sciences Sfax, Laboratory for Physics of Materials (LPM), Sfax 3000, Tunisia
2. University of Gafsa, Faculty of Sciences of Gafsa, Gafsa 2112, Tunisia
3. National Engineering School of Sfax, Laboratory for Electromechanical Systems (LASEM), Sfax 3038, Tunisia
4. Department of Physics, Faculty of Sciences Sfax, Laboratory for Multifunctional Materials & Applications (LMMA), Sfax 3000, Tunisia
5. Department Materials and Geosciences, Technical University Darmstadt, Darmstadt 64289, Germany
6. Institute of Molecules and Materials of Le Mans (IMMM), UMR - CNRS, University of Le Mans, Le Mans 6283, France
7. Faculty of Electrical Engineering and Information Technology, Measurement and Sensor Technology,TU Chemnitz, Chemnitz09126,Germany