Affiliation: | 1.Institute of Physics, University of Silesia in Katowice, 75 Pulku Piechoty 1a, 41-500, Chorzow, Poland ;2.Institute of Material Science, University of Silesia in Katowice, 75 Pulku Piechoty 1a, 41-500, Chorzow, Poland ;3.Silesian Center for Education and Interdisciplinary Research, 75 Pulku Piechoty 1a, 41-500, Chorzow, Poland ; |