1. Electronic Ceramics Department Jožef Stefan Institute and Jožef Stefan International Postgraduate School Jamova 39 Ljubljana SI‐1000 Slovenia
2. Department of Systems and Control Jožef Stefan Institute and Jožef Stefan International Postgraduate School Jamova cesta 39 Ljubljana SI‐1000 Slovenia
3. Department of Materials Science and Engineering North Carolina State University and Analytical Instrumentation Facility 2410 Campus Shore Drive Raleigh NC 27695‐7907 USA
4. Group for Ferroelectrics and Functional Oxides Swiss Federal Institute of Technology – EPFL Lausanne CH‐1015 Switzerland
5. Department of Materials Chemistry National Institute of Chemistry Hajdrihova 19 Ljubljana SI‐1000 Slovenia