Los Alamos National Laboratory, Theoretical Division, T-1, MS B221, Los Alamos, NM 87545, United States
Department of Material Science and Engineering, The Royal Institute of Technology, Stockholm, 10044, Sweden ; Institute of Theoretical Physics, AlbaNova University Center, The Royal Institute of Technology, Stockholm, 10691, Sweden
Los Alamos National Laboratory, Theoretical Division, T-1, MS B221, Los Alamos, NM 87545, United States
Department of Material Science and Engineering, The Royal Institute of Technology, Stockholm, 10044, Sweden ; Condensed Matter Theory Group, Department of Physics, Box 530, Uppsala University, Uppsala, 75121, Sweden
Department of Physics, Chemistry and Biology (IFM), Linkoping University, Linkoping, 58183, Sweden
Los Alamos National Laboratory, Physics Division, P-22, MS D410, Los Alamos, NM 87545, United States
Department of Physics, Chemistry and Biology (IFM), Linkoping University, Linkoping, 58183, Sweden
Los Alamos National Laboratory, Physics Division, P-24, MS E526, Los Alamos, NM 87545, United States