1. Key Laboratory of Multifunctional Materials and Structures, Ministry of Education, School of Electronic Science and Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi710049, China
2. Microelectronics Research Unit, University of Oulu, P.O. Box 4500, OuluFI-90014, Finland
3. State Key Laboratory for Mechanical Behaviour of Materials, Xi’an Jiaotong University, Xi’an710049, P. R. China
4. Physics Department, Faculty of Science, Tanta University, Al-Geish st., Tanta31527, Egypt
5. School of Electronic and Information Engineering, Hangzhou Dianzi University, Hangzhou310018, China