1. Department of Physics, Pontifical Catholic University of Rio de Janeiro, Rio de Janeiro, RJ 22451900, Brazil
2. Departamento de Física, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte, RN 59078-970, Brazil
3. Department of Physics, Materials Science Lab, Quaid-i-Azam University, Islamabad, 45320, Pakistan
4. School of Engineering, Mackenzie Presbyterian University, Rua da Consolação, 930, São Paulo, SP 01302-907, Brazil
5. Institute of Physics, Fluminence Federal University, Niteroi, RJ, 24210-346, Brazil
6. Department of Physics and Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA 16802, USA