Affiliation: | a Department of Physics, Faculty of Science and Arts, Karadeniz Technical University, Trabzon 61080, Turkey b Superconductor and Thin Film Laboratory, Department of Physics, Faculty of Science and Environmental Studies, Universiti Putra Malaysia, Serdang 43400, Selangor D.E., Malaysia c Department of Physics, Rize Faculty of Science and Arts, Karadeniz Technical University, Rize, Turkey |