1. Central Department of Physics, Tribhuvan University, Kirtipur, Bagmati 44613, Nepal
2. Leibniz Institute for Solid State and Materials Research Dresden (IFW-Dresden), Dresden 01609, Germany
3. Condensed Matter Physics Research Center, Butwal-11, Lumbini 32907, Nepal
4. Chemical and Materials Engineering, San José State University, San Jose, California 95192, USA
5. Department of Physics, Mizoram University, Aizawl, Mizoram 796004, India