1. Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
2. Faculty of Science and Engineering, Southern Cross University, Lismore, NSW 2480, Australia
3. School of Environment and Science, Griffith University, Nathan, Queensland 4111, Australia
4. Korea Institute of Fusion Energy, 169-148 Gwahak-ro, Yuseong-gu, Daejeon 34133, South Korea
5. Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611, USA
6. Computational Physics Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA