1. Institute for the Chemistry of Organometallic CompoundsNational Research Council (CNR) Firenze Italy
2. Physics Institute IIUniversity of Cologne Germany
3. National Enterprise for nanoScience and nanoTechnology (NEST)Istituto Nanoscienze – CNR and Scuola Normale Superiore Pisa Italy
4. Department of Electrical and Computer EngineeringMcGill University Montréal Canada