1. Electronic Materials Research LaboratoryKey Laboratory of the Ministry of EducationInternational Center for Dielectric ResearchShaanxi Engineering Research Center of Advanced Energy Materials and DevicesSchool of Electronic & Information EngineeringXi'an Jiaotong UniversityXi'an710049ShaanxiP. R. China
2. State Key Laboratory for Strength and Vibration of Mechanical StructuresDepartment of Engineering MechanicsSchool of Aerospace EngineeringXi'an Jiaotong UniversityXi'an710049ShaanxiP. R. China