Affiliation: | 1. Department of Physics, Hefei National Laboratory for Physical Sciences at Microscale, and Key Laboratory of Strongly-Coupled Quantum Matter Physics (CAS), University of Science and Technology of China, Hefei, Anhui 230026, People''s Republic of China;2. School of Physical Sciences, University of Science and Technology of China, Hefei, Anhui 230026, People''s Republic of China;3. Institute of Physical Science and Information Technology, Anhui University, Hefei, Anhui 230601, People''s Republic of China |