[1] G.M.Wu, T.H.Yang, J.Wang, H.L.Zhang and J.Shen,: High Temperatures High Pressures, 2000, 32, 687. [2] P.Nostell, A.Roos and B.Karlsson: Thin Solid Films, 1999,351, 170. [3] M.A.Einarsrud and E.Nilson: Journal Non-Crystalline Solids,1998, 226, 122. [4] S.Haereid, M.Dahle and M.A.Einarsrud: Journal NonCrystalline Solids, 1995, 186, 96. [5] H.G.Floch and P.F.Belleville: SPIE,Sol-Gel OpticsⅡ,1992,1758, 135. [6] P.F.Belleville, H.G.Floch: SPIE,Sol-Gel Optics Ⅲ,1994,2288, 25. [7] X.M.Du and R.Almeida: J. Sol-Gel Sci. Technol., 1997, 8, 377. [8] H.Imei, M.Yasumori, H.Hirashima, K.Awazu and H.Onuki: J.APPl. Phys., 1996, 79(11) , 8304. [9] M.S.Sahota, E.L.Short and J.Beynon: J. Non-Cryst. Solids,1996, 195, 83. [10] A.Labrosse and A.Burneau: J. Non-Cryst. Solids, 1997, 221,107. [11] R.B.Pettit, C.S.Ashley S.T.Reed and C.J.Brinker: Sol-Gel Technology for Thin Films, Fibers, Preforms, Electronics and Specialty Shapes, ed. L.C.Klein, Noyes Publications, Park Ridge, New Jersey USA, 1987, 80. [12] Tianhe YANG: Master Thesis, Tongji University, 2000. (in Chinese) [13] F.L.Galeener: Phys. Rey. B, 1979, 19(8) , 4292. [14] G.M.Wu, J.Wang, J.Shen, T.H.Yang, Q.Y.Zhang, B.Zhou,Z.S.Dneg, B.Fan, D.P.Zhou and F.S.Zhang: Acta Phys. Sin.,2001, 50(1) , 168. [15] R.M.Almeida and C.G.Pantano: J Appl. Phys., 1990, 68,4225. |