About the Authors

Xiong-Biao Zhao

Roles Writing – original draft

Affiliation Key Laboratory of Artificial Microstructures in Yunnan Higher Education Institutions, School of Physical Science and Technology, Kunming University, Kunming, China

Xiao Zhang

Roles Investigation, Writing – review & editing

Affiliation Key Laboratory of Artificial Microstructures in Yunnan Higher Education Institutions, School of Physical Science and Technology, Kunming University, Kunming, China

Wei Guo

Roles Methodology, Validation, Writing – review & editing

guoweiphys@163.com

Affiliation Key Laboratory of Artificial Microstructures in Yunnan Higher Education Institutions, School of Physical Science and Technology, Kunming University, Kunming, China

Competing Interests

The authors have declared that no competing interests exist.