1. Department of Physics
2. University of Basel
3. CH 4056 Basel
4. Switzerland
5. International Center for Materials Nanoarchitectonics
6. National Institute for Materials Science
7. Tsukuba
8. Japan
9. Department of Chemistry and Biochemistry
10. University of Bernn Freiestrasse 3
11. CH 3012 Bern
12. Max Planck Institute for Polymer Research
13. 55128 Mainz
14. Germany