1. Institute of Atomic & Molecular Physics, Sichuan University, Chengdu 610065, P. R. China
2. LANSCE Division, Los Alamos National Laboratory, Los Alamos, New Mexico
87545, United States
3. Geophysical
Laboratory, Carnegie Institution of Washington, NW Washington,
D.C. 20015, United States
4. Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico
87545, United States
5. Geodynamics
Research Center, Ehime University, 2-5
Bunkyo-cho, Matsuyama 790-8577,
Japan
6. HiPSEC, University of Nevada, Las Vegas, Nevada 89154, United States