1. Department of Physics, Budapest University of Technology and Economics, Műegyetem rkp. 3, H-1111 Budapest, Hungary
2. Mihály Fazekas High School, Horváth Mihály tér 8, H-1082 Budapest, Hungary
3. Department of Fundamental Microbiology, University of Lausanne, CH-1015 Lausanne, Switzerland
4. Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich Béla tér 1, H-6720 Szeged, Hungary
5. ELKH-BME Condensed Matter Research Group, Budapest University of Technology and Economics, Műegyetem rkp. 3, H-1111 Budapest, Hungary