Institution: | College of Physics Science and Information Engineering, Hebei Normal University, Shijiazhuang 050016, China;Hebei Advanced Thin Films Laboratory, Shijiazhuang 050016, China; College of Physics Science and Information Engineering, Hebei Normal University, Shijiazhuang 050016, China;Hebei Advanced Thin Films Laboratory, Shijiazhuang 050016, China;College of Elementary Education, Xingtai University,
Xingtai 054001, China |