1. Smart Materials Laboratory, Department of Applied Physics, School of Physical Science and Technology, Northwestern Polytechnical University, Xi’an, Shaanxi 710129, China
2. Department of Physics and Electronic Engineering, Yuncheng University, Yuncheng, Shanxi 044000, China
3. Shaanxi Basic Discipline (Liquid Physics) Research Center, School of Physical Science and Technology, Northwestern Polytechnical University, Xi’an, Shaanxi 710129, China