[1] Norrestam R,Nyren M,Bovin J O.Structural investigation of new calcium-rare earth(R) oxyborate with composition Ca4RO(BO3)[J].Chem.Mater.,1992,4:737-743. [2] Ilynkhin A B,Dzhurinskii B F.Crystalline-structure of binary oxoborate of LnCa4O(BO3)3 where (Ln = Gd,Tb,Lu)and Eu2CaO(BO3)3[J].Zhurnal Negorganicheskoi Khimiii,1993,38:917-920. [3] Aka G,et al.Linear and nonlinear optical properties of a new gadolinium calcium oxoborate crystal[J].J.Opt.Soc.Am.,1997,14:2238-2247. [4] Iwai M,et al.Crystal growth and optical characterization of rare-earth(Re) calcium oxyborate ReCa4O(BO3)3 (Re=Y or Gd) as new nonlinear optical material[J].Jpn.App.Phys.A.,1997,36:L276-L279. [5] Schaik W Van,Van Heek M M E,Middel W,Blasse G.Luminescence and energy migration in a one-dimensional Gd3+ compound:Ca4GdO(BO3)3[J].J.Lumin.,1995,63:103-115. [6] Dirksen G J,Blasse G.Tetracalcium gadolinium oxoborate GdCa4O(BO3)3 as a new host lattice for luminescence materials[J].Journal of Alloy and Compounds,1993,191:121-126. [7] Wang Y H,Tadsji E,Xie E Q,He D Y,Liu B.Luminescence properties of Ca4 GdO(BO3):Eu in ultraviolet and vacuum ultraviolet region[J].Microelectronic Journal,2004,35:357-361. [8] Blasse G,Dirksen G J.The luminescence of several activators in SrLa2BeO5[J].J.Electrochem.Soc.,1989,136:1550-1557. [9] Hong H Y P,Dwight K.Spontaneous and stimulated emission of Nd3+ in the GdMgB5O10[J].Mater.Res.Bull.,1974,9:1661-1666. [10] Newnham R E,Redman M J,Santron R P.Crystal structure of yttrium and other rare earth borates[J].J.Am.Ceram.Soc.,1963,46:253-256. |