[[1] Zallen R., Penchina C.M., Am. J. Phys., 54 (1986), 862.10.1119/1.14422]Search in Google Scholar
[[2] Burina A., Lecante P., Mosset A., Galy J., Tonnerre J.M., Raoux D., J. Non-Cryst. Solids, 212 (1997), 23.10.1016/S0022-3093(96)00649-7]Search in Google Scholar
[[3] Endo H., Hoshino H., Ikemoto H., Miyanaga T., J. Phys.-Condens. Mat., 12 (2000), 6077.10.1088/0953-8984/12/28/306]Open DOISearch in Google Scholar
[[4] Kaseman D.C., Hung I., Lee K., Kovnir K., Gan Z., Aitken B., Sen S., J. Phys. Chem. B, 119 (2015), 2081.10.1021/jp5123618]Search in Google Scholar
[[5] Seddon A.B., J. Non-Cryst. Solids, 184 (1995), 44.10.1016/0022-3093(94)00686-5]Search in Google Scholar
[[6] Abd-Elnaiem A.M., Mohamed M., Hassan R.M., Abdel-Rahim M.A., Abu-Sehly A.A., Hafiz M.M., Mater. Sci.-Poland, 35 (2017), 335.10.1515/msp-2017-0052]Search in Google Scholar
[[7] Davis E.A., Mott N.F., Philos. Mag., 22 (1970), 0903.10.1080/14786437008221061]Search in Google Scholar
[[8] Tverjanovich A., Yagodkina M., Strykanov V., J. Non-Cryst. Solids, 223 (1998), 86.10.1016/S0022-3093(97)00433-X]Search in Google Scholar
[[9] Faigel Gy., Granasy L., Vincze I., Waard De H., J. Non-Cryst. Solids, 57 (1983), 411.10.1016/0022-3093(83)90428-3]Open DOISearch in Google Scholar
[[10] Toscani S., Dugue J., Ceolin R., Thermochim. Acta, 196 (1992), 191.10.1016/0040-6031(92)85019-R]Search in Google Scholar
[[11] Hafiz M.M., Moharram A.H., Abu-Sehly A.A., Appl. Surf. Sci., 115 (1997), 203.10.1016/S0169-4332(96)01088-4]Search in Google Scholar
[[12] Murugavel S., Acharya K.V., Asokan S., J. Non- Cryst. Solids, 191 (1995), 327.10.1016/0022-3093(95)00302-9]Search in Google Scholar
[[13] Quinn R.K., Mater. Res. Bull., 9 (1974), 803.10.1016/0025-5408(74)90116-0]Open DOISearch in Google Scholar
[[14] Titus S.S.K., Asokan S., Gopal E.S.R., Solid State Commun., 83 (1992), 745.10.1016/0038-1098(92)90156-4]Open DOISearch in Google Scholar
[[15] Cornet J., Rossier D., J. Non-Cryst. Solids, 12 (1973), 85.10.1016/0022-3093(73)90056-2]Search in Google Scholar
[[16] Cornet J., Rossier D., J. Non-Cryst. Solids, 12 (1973), 61.10.1016/0022-3093(73)90055-0]Search in Google Scholar
[[17] Kim S., Kim H., Choi S., J. Alloy. Compd., 667 (2016), 91.10.1016/j.jallcom.2016.01.146]Search in Google Scholar
[[18] Jovari P., Lucas P., Yang Z., Bureau B., Kaban I., Beuneu B., Panatlei C., Bednarcik J., J. Non-Cryst. Solids, 433 (2016), 1.10.1016/j.jnoncrysol.2015.11.003]Search in Google Scholar
[[19] Lucas P., Coleman G.J., Kaseman D.C., Yang Z., Hung I., Gan Z., Sen S., J. Non-Cryst. Solids, 432 (2016), 527.10.1016/j.jnoncrysol.2015.11.010]Search in Google Scholar
[[20] Tverjanovich A., Rodionov K., Bychkov E., J. Solid State Chem., 190 (2012), 271.10.1016/j.jssc.2012.02.044]Search in Google Scholar
[[21] Dongol M., Hafiz M.M., Abou-Zied M., Elhady A.F., Appl. Surf. Sci., 185 (2001), 1.10.1016/S0169-4332(01)00394-4]Search in Google Scholar
[[22] Manikandan N., Asokan S., J. Non-Cryst. Solids, 353 (2007), 1247.10.1016/j.jnoncrysol.2006.10.055]Search in Google Scholar
[[23] Mohamed M., Abd-Elnaiem A.M., Hassan R.M., Abdel-Rahim M.A. Hafiz M.M., Appl. Phys. A, 123 (2017), 511.10.1007/s00339-017-1111-2]Search in Google Scholar
[[24] Patterson A.L., Phys. Rev., 56 (1939), 978.10.1103/PhysRev.56.978]Open DOISearch in Google Scholar
[[25] Abdel-Rahim M.N., Abdel-Latif A.Y., Soltan A.S., Physica B, 291 (2000), 41.10.1016/S0921-4526(99)01873-6]Search in Google Scholar
[[26] Abu El-Fadl A., Hafiz M.M., Wakaad M.M., Aashour A.S., Radiat. Phys. Chem., 76 (2007), 61.10.1016/j.radphyschem.2006.08.007]Search in Google Scholar
[[27] Abdel-Rahim M.A., J. Phys. Chem. Solids, 60 (1999), 29.10.1016/S0022-3697(98)00250-9]Search in Google Scholar
[[28] Urbach F., Phys. Rev., 92 (1953), 1324.10.1103/PhysRev.92.1324]Search in Google Scholar
[[29] Vincent R.K., Hunt G.R., Appl. Opt., 7 (1968), 53.10.1364/AO.7.00005320062405]Open DOISearch in Google Scholar
[[30] Gravesteijn D.J., Appl. Opt., 27 (1988), 736.10.1364/AO.27.00073620523672]Open DOISearch in Google Scholar
[[31] Wemple S.H., Phys. Rev.B, 7 (1973), 3767.10.1103/PhysRevB.7.3767]Open DOISearch in Google Scholar
[[32] Khan Z.H., Zulfequar M., Sharma T.P., Husain M., Opt. Mater., 6 (1996), 139.10.1016/0925-3467(96)00044-4]Open DOISearch in Google Scholar
[[33] Lee P.A., Said G., Davis R., Lim T.H., J. Phys. Chem. Solids, 30 (1969), 2719.10.1016/0022-3697(69)90045-6]Open DOISearch in Google Scholar
[[34] Kosek F., Cimpl Z., Mikhailov M.D., Karpova E.A., J. Non-Cryst. Solids, 86 (1986), 265.10.1016/0022-3093(86)90014-1]Open DOISearch in Google Scholar
[[35] Sharmila B. H., Asokan S., Appl. Phys. A, 82 (2006), 345.10.1007/s00339-005-3373-3]Open DOISearch in Google Scholar
[[36] Tu K.N., Rosenberg R., Analytical Techniques For Thin Films: Treatise On Materials Science And Technology, Elsevier, 2017.]Search in Google Scholar
[[37] Mohamed M., Moustafa S., Abd-Elnaiem A.M., Abdel-Rahim M.A., J. Alloy. Compd., 647 (2015), 771.10.1016/j.jallcom.2015.05.197]Search in Google Scholar
[[38] El-Sebaii A.A., Khan S.A., Al-Marzouki F.M., Faidah A.S., Al-Ghamdi A.A., J. Lumin., 132 (2012), 2082.10.1016/j.jlumin.2012.03.046]Search in Google Scholar
[[39] Chaudhuri S., Biswas S.K., Choudhury A., Goswami K., J. Non-Cryst. Solids, 54 (1983), 179.10.1016/0022-3093(83)90092-3]Search in Google Scholar
[[40] Hasegawa S., Kitagawa M., Solid State Commun., 27 (1978), 855.10.1016/0038-1098(78)90191-6]Open DOISearch in Google Scholar