Affiliation: | 1.Department of Physics, Sri Venkateswara University, Tirupati, Andhra Pradesh, 517502, India ;2.Department of Physics, Annamacharya Institute of Technology and Sciences (Autonomous), Rajampet, Andhra Pradesh, 516126, India ;3.Department of Emerging Materials Science, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Dalseong‐gun, Daegu, 711873, South Korea ; |