1. CACTI, Universidade de Vigo, 36310 Vigo, Spain
2. Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus de la UAB, 08193 Bellaterra, Spain
3. Electron Microscopy for Materials Research (EMAT), University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
4. Université Paris Cité, CNRS, ITODYS, Paris, F-75013 Paris, France
5. Departamento de Física Aplicada, Universidade de Vigo, 36310 Vigo, Spain
6. CINBIO, Universidade de Vigo, 36310 Vigo, Spain