SCOTT James University of Cambridge (UNITED KINGDOM) SAINT-GREGOIRE Pierre University of Nîmes (FRANCE) ALIOUANE Nadir Paul Scherrer Institute, Villigen (SWITZERLAND) MULLER Christophe University of Aix-Marseille (FRANCE) KARKUT Michael University of Picardy, Amiens (FRANCE) CATALAN Gustau Institut Catala de Nanotecnologia, Barcelona, (SPAIN) MLAYAH Adnen University of Toulouse (FRANCE) EL MARSSI Mimoun University of Picardy, Amiens (FRANCE)