Institution: | 1. Department of Physics, Faculty of Science, Anadolu University, Yunus Emre Campus, 26470 Eskisehir, Turkey;2. Department of Physics, Faculty of Science and Arts, Gazi University, Teknikokullar, 06500 Ankara, Turkey;3. Nanotechnology Research Center, Department of Physics, Bilkent University, 06800 Ankara, Turkey;4. Department of Electrical and Electronics Engineering, Bilkent University, 06800 Ankara, Turkey |