1. Instituto
Regional de Investigación Científica Aplicada (IRICA)
and Departamento de Física Aplicada, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
2. Institute
of Nanoscience and Nanotechnology, NCSR “Demokritos”, 153 10 Agia Paraskevi, Attiki, Greece
3. Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, The Nanos, Singapore 138669, Singapore
4. Department
of Engineering Sciences, Uppsala University, Box 534, SE-751 21 Uppsala, Sweden
5. Institut
des Molécules et Mateŕiaux du Mans, CNRS UMR-6283, Université du Maine, F-72085 Le Mans, France
6. Department
of Physics, University of California, Davis, California 95616, United States
7. Istituto
di Struttura della Materia, CNR, 00015 Monterotondo
Scalo (RM), Italy
8. Instituto
de Física, Universidade Federal do Rio Grande do Sul, 91501-970 Porto Alegre, RS, Brazil
9. Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193 Barcelona, Spain
10. ICREA, Pg. Lluís
Companys 23, 08010 Barcelona, Spain