1. Department of Physics & I3N
2. University of Aveiro
3. 3810-193 Aveiro
4. Portugal
5. Department of Physics and Center for Hybrid Nanostructure (CHyN)
6. Universität Hamburg
7. Hamburg 22761
8. Germany
9. Institute for Materials Science
10. Synthesis and Real Structure
11. Kiel University
12. 24143 Kiel
13. Functional Nanomaterials
14. Kiel
15. Mads Clausen Institute
16. NanoSYD
17. University of Southern Denmark
18. Sønderborg
19. Denmark