[1] [1] Struve В, Huber G, Capter Υ Υ et al. Appl. Phys., 1983; B30(l): 117

[3] [3] Struve В, Huber G. J. Appl. Phys, 1985 57(1): 45

[4] [4] Strure B, Huber G. Appl. Phys，1985: B36: 195

[7] [7] Wood D L et al. J. Chem. Phys., 1963: 39: 890

[9] [9] Slater J C. Phys. Rev. 1951; 81: 385

[10] [10] Schwartze K. Phys. Rev. 1972; B5: 2466

[11] [11] Keith Μ L, Roy R. Amer. Mineral, 1954; 39: 1

[12] [12] Gilleo Μ A, Geller S. J. Appl. Phys. 1957; 29: 380

[13] [13] "International Table for GrystaHog; aphy, Vol. A, Space Group Symmetry”, Ed.by Hahn T. Reidal D, Publ. Сотр., 1983

[14] [14] Swanson S et al.; Natl. Bur. Std. Mono, 1962; 25:1

[15] [15] Espinosa G P. Inorg. Chem., 1964;3: 848

[16] [16] Euler F, Bruce J A. Acta Gryst.1965; 19: 971

[17] [17] Oeller S. Z. Krystall，1976; 125: 1

[18] [18] Norman J G Jr. MoL Phys. 1976; 31: 1191

[19] [19] Cook M, Karplus M. J. Chem. Phys., 1980; 72: 7

[20] [20] Case D A et al. J Amer. Chem Soc.91977; 99: 6182