1. Electron Microscope Systems Design Department, Hitachi High-Tech Corporation , 552-53 Shinko-cho, Hitachinaka-shi, Ibaraki-ken 312-8504, Japan
2. Department of Materials Science and Engineering, University of Toronto , 184 College St, Toronto, ON M5S 3E4, Canada
3. In-situ Electron Microscopy Technique Development Group, National Institute for Materials Science , 1-2-1 Sengen, Tsukuba 305-0047, Japan
4. Degree Programs in Pure and Applied Sciences, University of Tsukuba , 1-2-1 Sengen, Tsukuba 305-0047, Japan
5. Department of Chemical Engineering and Applied Chemistry, University of Toronto , 200 College St, Toronto, ON M5S 3H6, Canada