Affiliation: | (1) Journal Editorial Department, Huanggang Normal University, Huanggang 438000, Hubei, P.R. China;(2) College of Physical Science and Technology, Huanggang Normal University, Huanggang 438000, Hubei, P.R. China;(3) Department of Physics, Huazhong Normal University, Wuhan, 430079, P.R. China |