Affiliation: | 1. Department of Physics, Sri Venkateswara University, Tirupati 517501, India;2. Department of Physics, R.G.M. College of Engineering and Technology, Nandyal 518501, India;3. Department of Physics, Yogi Vemana University, Kadapa 516005, India;1. Micron Technology Inc., Boise, ID, United States;2. Entegris Inc., Burnet, TX, United States |