Institution: | a Institute of Electrical Engineering, SAS, Dúbravská cesta 9, 84104 Bratislava, Slovak Republic b Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46, 02-668 Warsaw, Poland c Department of Microelectronics, Slovak Technical University, Ilkovi?ova 3, 81219 Bratislava, Slovak Republic d Instituto de Ciencia de Materiales de Sevilla, Avda Américo Vespucio 49, 41092 Sevilla, Spain |