1. Magnetic Materials Laboratory, Department of Physics, National Institute of Technology, Tiruchirappalli, 620015, India
2. Federal Institute for Materials Research and Testing (BAM), Richard-Willstätter-Str. 11, 12489 Berlin, Germany
3. International Centre for Research on Innovative Biobased Materials (ICRI-BioM), Lodz University of Technology, 90-924 Lodz, Poland
4. Department of Physics, Bharathiar University, Coimbatore-641 046, India