1. Department
of Biological Physics, Eötvös University, Pázmány
Péter sétány 1/A, H-1117 Budapest, Hungary
2. National
Graphene Institute, University of Manchester, Manchester M13 9PL, United Kingdom
3. Fakultät
für Physik, Universität Wien, Strudlhofgasse 4, 1090 Wien, Austria
4. Department
of Physics and MTA-BME Lendület Spintronics Research Group
(PROSPIN), Budapest University of Technology and Economics, P.O. Box 91, H-1521 Budapest, Hungary