1. Khan, M.A.M., Zulfequar, M., Kumar, S., and Husain, M., Optical band gap and optical constants of a-Se100 − x Sbx thin films, J. Mod. Opt., 2003, vol. 50, pp. 251–263.
2. Sharma, N., Sharda, S., Sharma, V., and Sharma, P., Structural rigidity, percolation, and transition-temperature study of the Ge19Se81 − x Sbx system, Defect Diffus. Forum, 2011, vols. 316–317, pp. 37–44.
3. Sanghera, J.S. and Aggarwal, I.D., Active and passive chalcogenide glass optical fibers for IR applications: A review, J. Non-Cryst. Solids, 1999, vols. 256–257, pp. 616.
4. Kolomieto, B.T., Vitreous semiconductors, Phys. Status Solidi, 1964, vol. 7, pp. 713–731.
5. Sharma, N., Sharda, S., Sharma, V., and Sharma, P., Evaluation of physical parameters for new quaternary Ge19 − y Se63.8Sb17.2Tey chalcogenide glasses, Chalcogenide Lett., 2012, vol. 9, pp. 355–363.