National Laboratory of Solid State Microstructure and Department of Physics, Nanjing University, Nanjing, China.|National Laboratory of Solid State Microstructure and Department of Physics, Nanjing University, Nanjing, China.|National Laboratory of Solid State Microstructure and Department of Physics, Nanjing University, Nanjing, China.|High Performance Computing Center, Nanjing University, Nanjing, China.|National Laboratory of Solid State Microstructure and Department of Physics, Nanjing University, Nanjing, China.|National Laboratory of Solid State Microstructure and Department of Physics, Nanjing University, Nanjing, China.