Affiliation: | [1]Physicochemical Institute, Vasyl Stefanyk Precarpathian National University, lvano-Frankivsk 76018, Ukraine [2]Electronic and Computer Engineering Department, Faculty of Technology, Gazi University, Ankara, Teknikokullar 06500, Turkey [3]Faculty of Sciences, Physics Department, Gazi University, Ankara 06500, Turkey [4]Ankara University, Science Faculty, Department of Physics, Ankara |