1. Department of Physics, Sri Sathya Sai Institute of Higher Learning (SSSIHL), Prasanthi Nilayam, Sri Sathya Sai District, Andhra Pradesh, India – 515134
2. Central Research Instruments Facility (CRIF), SSSIHL, Prasanthi Nilayam, Sri Sathya Sai District, Andhra Pradesh, India – 515134
3. Materials Research Centre, Indian Institute of Science, Bangalore, India – 560012