| Affiliation: | [1]Key Laboratory of Low Dimensional Quantum Structures and Quantum Control of Ministry of Education, Department of Physics, Hunan Normal University, Changsha 410081 [2]College of Electronic Engineering and Physics, Hunan University of Science and Engineering, Yongzhou 425006 [3]College of Mathematics and Computer Science, Hunan Normal University, Changsha 410081 [4]Department of Physics, Guangxi University, Nanning 530004 [5]Department of Applied Physics, Hunan University, Changsha 410082 [6]International Centre for Materials Physics, Chinese Academy of Sciences, Shenyang 110015 |
