Affiliation: | 1. EME/CeRMAE/IN2UB, Department of Electronics, University of Barcelona, Martí i Franquès 1, 08028 Barcelona, Spain;2. Department of Materials, Imperial College London, London SW7 2AZ, United Kingdom;3. Laboratoire SPMS, Ecole Centrale Paris (UMR CNRS 8580), Grande voie des vignes, 92295 Chatenay-Malabry Cedex, France |