[1] Ataturk Univ, Grad Sch Nat & Appl Sci, Dept Nanosci & Nanoengn, Adv Mat Res Lab, TR-25240 Erzurum, Turkey
[2] Ataturk Univ, Dept Phys, TR-25240 Erzurum, Turkey
[3] Univ Hakkari, Dept Elect & Elect Engn, TR-30000 Hakkari, Turkey
[4] Dumlupinar Univ, Dept Elect & Elect Engn, TR-43500 Simav, Kutahya, Turkey
[5] Istanbul Univ, Dept Engn Phys, TR-34100 Istanbul, Turkey