1. Inorganic Materials ChemistryRuhr University Bochum Universitätsstr. 150 Bochum 44801 Germany
2. Institute of Electrical Engineering and Plasma TechnologyRuhr University Bochum Universitätsstr. 150 Bochum 44801 Germany
3. Microsystems TechnologyRuhr University Bochum Universitätsstr. 150 Bochum 44801 Germany
4. Forschung und Entwicklung, GB Sensorikparagon GmbH & Co KGaA Schwalbenweg 29 Delbrück 33129 Germany
5. Department of Material Science Institute of Experimental Condensed Matter PhysicsHeinrich Heine University Düsseldorf Universitätsstr. 1 Düsseldorf 40225 Germany
6. RUBIONRuhr University Bochum Universitätsstr. 150 Bochum 44801 Germany
7. Department of Physics and Astronomy – Centre for Storage Ring Facilities (ISA)Aarhus University Aarhus 8000 Denmark