1. IPEN-Instituto de Pesquisas Energéticas e Nucleares; Av. Prof. Lineu Prestes, 2242 - Cidade Universitária São Paulo SP 05508-000 Brazil
2. Catalan Institute of Nanoscience and Nanotechnology (ICN2); CSIC and BIST,; Campus UAB Bellaterra E-08193 Barcelona Spain
3. CIC nanoGUNE; Tolosa Hiribidea, 76 E-20018 Donostia-San Sebastián Spain
4. ALBA Synchrotron; Carrer de la Llum; 2-26, Cerdanyola del Vallés E-08290 Barcelona Spain
5. Physics and Materials Science Research Unit; University of Luxembourg; L-1511 Luxembourg Luxembourg
6. Materials Research and Technology Department; Luxembourg Institute of Science and Technology; L-4422 Belvaux Luxembourg
7. Institut de Ciència de Materials de Barcelona- CSIC; UAB Campus; Cerdanyola del Vallès E-08193 Barcelona Spain
8. ICREA; Pg. Lluís Companys 23 E-08010 Barcelona Spain