CF4气氛中生长Re：LiM(Re=Tm,Ce;M=Lu,Y)F4晶体  

Growth of Re:LiM(Re=Tm,Ce;M=Lu,Y)F_4 Crystal under CF_4 Atmosphere

作　　者：那木吉拉图[1] 阮永丰[2] 苏小平[1] 杨海[1] 杨鹏[1] 李楠[1] 

机构地区：[1]北京有色金属研究总院,北京国晶辉红外光学科技有限公司,北京100088 [2]天津大学物理系,天津300072

出　　处：《人工晶体学报》2009年第3期700-704,共5页Journal of Synthetic Crystals

摘　　要：本文在CF4气氛中以提拉法成功地生长出高质量的掺入Tm3+、Ce3+的LiLuF4和LiYF4晶体,对比了Ar和CF4气氛中生长的LiYF4晶体的红外光谱特性,讨论了CF4气氛对LiM(M=Y,Lu)F4晶体生长的影响。同时测试了Tm3+、Ce3+在LiLuF4和LiYF4晶体中的有效分凝系数,从离子半径和晶胞畸变的角度,讨论了Tm3+、Ce3+在LiLuF4和LiYF4晶体中有效分凝系数差别的产生原因。Tm^3＋,Ce^3＋ doped LiLuF4 and LiYF4 crystals with high quality were successfully grown under CF4 atmosphere by Czoehlalski method. IR spectra were measured and compared with those of the crystals grown under Ar atmosphere. The influence of CF4 atmosphere on crystal growth and contamination in crystals were discussed. The effective distribution coefficients of Tm^3＋ , Ce^3＋ in LiLuF4 and LiYF4 crystals were measured and reported in this paper. The originating reason of difference in the effective distribution coefficients of Tm^3＋ and Ce^3＋ in LiLuF4 and LiYF4 crystals were discussed from the viewpoint of the ion radius and the lattice deformations.

关 键 词：LiYF4 LiLuF4 晶体生长 有效分凝系数 

分 类 号：O782[理学—晶体学]