1. School of Mathematics and Physics
2. Queen's University Belfast
3. Belfast
4. UK
5. Microelectronics-Photonics Program and Physics Department
6. University of Arkansas
7. Fayetteville
8. USA
9. Physics Department and Institute for Nanoscience and Engineering
10. Electronic Materials Research Laboratory
11. Key Laboratory of the Ministry of Education and International Center for Dielectric Research
12. Xi'an Jiaotong University
13. Xi'an 710049
14. China
15. Department of Physics
16. Southern Illinois University
17. Carbondale
18. Ernst Ruska Centre for Microscopy
19. Forschungszentrum Juelich
20. Juelich 52428
21. Germany
22. School of Materials Science and Engineering
23. Center for Materials for Information Technology
24. University of Alabama
25. Tuscaloosa
26. Center for Nanophase Material Sciences
27. Oak Ridge National Laboratory
28. Oak Ridge