1. Multifunctional Materials and Structures, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, School of Electronic Science and Engineering, Xi'an Jiaotong University, Xi'an, 710049, PR China
2. The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, PR China
3. Physics Department, Faculty of Science, Tanta University, Al-Geish St., Tanta 31527, Egypt
4. School of Electronic and Information Engineering, Hangzhou Dianzi University, Hangzhou, 310018, PR China
5. School of Material Science and Energy Engineering, Foshan University, Foshan, Guangdong, 528000, PR China