1. Materials Research and Technology Department, Luxembourg Institute of Science and Technology (LIST), 41 Rue du Brill, L-4422 Belvaux, Luxembourg
2. Electronic Ceramics Department, Jožef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana, Slovenia
3. Department of Materials Chemistry, National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia
4. Inter-institutional Research Group Uni.lu–LIST on Ferroic Materials, 41 Rue du Brill, L-4422 Belvaux, Luxembourg