Affiliation: | 1. State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, Department of Physics, Peking University, Beijing, P.R. China;2. Collaborative Innovation Center of Quantum Matter, Beijing, P.R. China;3. Materials Sciences Division, Lawrence Berkeley National Laboratory, CA, USA;4. Clarendon Laboratory, Department of Physics, University of Oxford, Oxford, UK;5. School of Chemistry, University of Lincoln, Beevor Street, Lincoln, UK;6. Department of Polymer Science and Engineering, University of Massachusetts, Amherst, MA, USA;7. Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi, P.R. China |