1. Empa-Swiss Federal Laboratories for Materials Science and Technology, Ueberlandstrasse 129, CH-8600 Dübendorf, Switzerland
2. Institute of Geological Sciences, University of Bern, Hochschulstrasse 6, CH-3012 Bern, Switzerland
3. Paul Scherrer Institute, Forschungsstrasse 111, CH-5232 Villigen, Switzerland