1. Department of Electronic Materials Engineering, Research School of Physics and Engineering, The Australian National University, Canberra, ACT 2601, Australia
2. Department of Physics, College of Education- Jubail, Imam Abdulrahman Bin Faisal University, Dammam 1982, Saudi Arabia
3. Centre for Advanced Microscopy, Australian National University, Canberra, ACT 2601, Australia
4. Australian Synchrotron, 800 Blackburn Road, Clayton, VIC 3168, Australia