1. State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, People's Republic of China
2. Department of Materials Physics, Research School of Physics, Australian National University, Canberra ACT 2601, Australia
3. Australian Synchrotron, ANSTO, 800 Blackburn Rd, Clayton, Victoria 3168, Australia
4. GSI Helmholtzzentrum für Schwerionenforschung (GSI), Planckstr. 1, D-64291, Darmstadt, Germany
5. Center for Quantitative Biology, Peking University, Beijing 100871, People's Republic of China