1. Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, E-08193 Barcelona, Spain
2. Ecole des Mines de Saint-Étienne, CNRS UMR 5307, 158 cours Fauriel, F-42023 Saint-Étienne, Cedex 2, France
3. Advanced Materials Multiscale Modeling, Institute of Structural Mechanics, Bauhaus-Universität Weimar, Marienstr. 15, D-99423 Weimar, Germany
4. Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
5. NanoBioMedical Centre, Adam Mickiewicz University, ul. Umultowska 85, PL-61614 Poznan, Poland
6. Catalonia Institute for Energy Research (IREC), Jardíns de les Dones de Negre 1, E-08930 Sant Adrià de Besòs, Spain
7. Departament de Física, Universitat Autònoma de Barcelona, Bellaterra, E-08193 Barcelona, Spain
8. Dipartimento di Fisica, Università di Cagliari, Cittadella Universitaria, Monserrato, I-09042 Cagliari, Italy
9. ICREA − Institució Catalana de Recerca i Estudis Avancats, E-08010 Barcelona, Spain