1. Physics
Department, Lancaster University, LAI 4YB Lancaster, United Kingdom
2. Wigner
Research Centre for Physics, Hungarian Academy of Sciences, P.O.B. 49, H-1525 Budapest, Hungary
3. Faculty
of Physics, University of Vienna, Strudlhof-gasse 4, A-1090 Wien, Austria
4. University
Service Centre for Transmission Electron Microscopy (USTEM), Technische Universität Wien, Wiedner Hauptstrasse 8−10/052, A-1040 Wien, Austria
5. Department
of Theoretical Physics, Budapest University of Technology and Economics, Budafoki tit 8., H-1111 Budapest, Hungary
6. Department
of Biological Physics, Eötvös University, Pázmány
Péter sétány 1/A, H-1117 Budapest, Hungary
7. Leibniz Institute for Solid State and Materials Research, Helmholtzstrasse 20, 01069 Dresden, Germany
8. Department
of Physics, Budapest University of Technology and Economics and MTA-BME Condensed Matter Research Group, P.O.B. 91, H-1521 Budapest, Hungary