1. Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education and International Center for Dielectric Research, School of Electronic Science and Engineering, Xi’an Jiaotong University, Xi’an, China
2. Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education and International Center for Dielectric Research, School of Electronic Science and Engineering, and the School of Future Technology, Xi’an Jiaotong University, Xi’an, China
3. Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, China