1. School of Physics and Information Engineering, Guangdong University of Education , No. 351 Xinggang Road , Guangzhou , 510303 , China
2. Department of Physics, COMSATS University Islamabad, Lahore Campus , Lahore , 45550 , Pakistan
3. MIIT Key Laboratory of Advanced Metallic and Intermetallic Materials Technology, School of Materials Science and Engineering, Nanjing University of Science and Technology , Nanjing , 210094 , China
4. Department of Electrical Engineering and Computer Science, University of California , Irvine , 92697, CA , United States of America
5. College of Mathematical Medicine, Zhejiang Normal University , Jinhua , 321004 , China
6. Institute of Physics, Khwaja Fareed University of Engineering and Information Technology (KFUEIT) , Rahim Yar Khan , 64200 , Pakistan
7. Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, Bellaterra , 08193 , Barcelona , Spain
8. Department of Electrical and Computer Engineering, University of Delaware , Newark , DE, 19711 , United States of America