1. Electronic Materials Research Laboratory, Key Laboratory of Multifunctional Materials and Structures, Ministry of Education, School of Electronic Science and Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi710049, People’s Republic of China
2. Microelectronics Research Unit, University of Oulu, Post Office Box 4500, FI-90014Oulu, Finland
3. State Key Laboratory for Mechanical Behaviour of Materials, Xi’an Jiaotong University, Xi’an, Shaanxi710049, People’s Republic of China
4. Physics Department, Faculty of Science, Tanta University, Al-Geish Street, Tanta31527, Egypt
5. School of Electronic and Information Engineering, Hangzhou Dianzi University, Hangzhou, Zhejiang310018, People’s Republic of China
6. Functional Materials and Devices Laboratory, Department of Materials Science and Engineering, University of Sheffield, SheffieldS1 3JD, United Kingdom