1. Department of Physics, Vidyasagar University, Midnapore 721102, India
2. Department of Physics, University of Haifa, Haifa 3498838, Israel
3. Haifa Research Center for Theoretical Physics and Astrophysics, University of Haifa, Haifa 3498838, Israel
4. Department of Physics, Indian Institute of Technology Kharagpur, Kharagpur 721302, India