1. School of Physics; University of Hyderabad; Gachibowli Hyderabad 500 046 Andra Pradesh India
2. UGC-DAE Consortium for Scientific Research, R-5 Shed, B.A.R.C; Mumbai 400 085 India
3. Advanced Magnetics Group; DMRL; Hyderabad 500 058 Andra Pradesh India
4. UGC-DAE Consortium for Scientific Research; Khandwa Road Indore 452 001 Madya Pradesh India