1. Física
i Cristallografia de Materials i Nanomaterials (FiCMA-FiCNA) and EMaS, Universitat Rovira i Virgili (URV), Marcellí Domingo s/n, E-43007 Tarragona, Spain
2. CIMAP, UMR 6252 CNRS-ENSICAEN-CEA-UCBN, 6 Boulevard du Maréchal Juin, 14050 Caen Cedex, France
3. Department
of Chemistry, University College Cork, Cork, Ireland
4. Micro & Nanoelectronics Centre, Tyndall National Institute, Lee Maltings, Cork, Ireland