1. Rzeszow University of Technology, W. Pola 2, 35-395 Rzeszow, Poland
2. University of Rzeszow, Institute of Materials Engineering, Center for Microelectronics and Nanotechnology, al. Rejtana 16c, 35-959 Rzeszow, Poland
3. International Research Centre Magtop, Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland