1. Department of Physical Sciences, P. D. Patel Institute of Applied Sciences, CHARUSAT, Changa 388421, Gujarat, India
2. Laboratory of Nanostructures, Institute of High Pressure Physics, Polish Academy of Science, Sokolowska 29/37, 01-142 Warsaw, Poland
3. UGC-DAE Consortium for Scientific Research, Khandwa Road, Indore 452017, India