1. Materials Physics and Applications Division: Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos 87545, New Mexico, United States
2. Department of Physics, The University of Texas at Dallas, Richardson 75080, Texas, United States
3. Theoretical Division, Los Alamos National Laboratory, Los Alamos 87545, New Mexico, United States
4. Chemistry Division, Los Alamos National Laboratory, Los Alamos 87545, New Mexico, United States
5. Laboratory for Advanced Materials, Comenius University, Bratislava 84104, Slovakia