1. Electron Microscope Systems Design Dept., Hitachi High-Tech Corporation , Hitachinaka, Ibaraki , Japan
2. Solution Development Dept., Hitachi High-Tech Corporation , Hitachinaka, Ibaraki , Japan
3. Center for Advancing Materials Performance from the Nanoscale (CAMP-Nano) & XJTU-HHT Research and Development Center (XHRDC), State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University , Xi’an, Shaanxi , China
4. Center for Functional Nanomaterials, Brookhaven National Laboratory , Upton, NY , United States