1. UNAM—National Nanotechnology Research Center and Institute of Materials Science and Nanotechnology, Bilkent University 1 , Ankara 06800, Turkey
2. Network Technologies Department, TUBITAK ULAKBIM 2 , 06800 Ankara, Turkey
3. Department of Materials Science and Engineering, Izmir Institute of Technology 3 , 35430 Izmir, Turkey
4. Department of Mechanical Engineering, Faculty of Engineering, Eskisehir Technical University 4 , 26555 Eskisehir, Turkey
5. Department of Physics and NANOlab Center of Excellence, University of Antwerp 5 , Groenenborgerlaan 171, B-2020 Antwerp, Belgium