虽然约在20年前就报道了TbP_5O_4中Tb~(3+)的室温发射,但是直到今天还没有一个人能发现其它Tb离子化合物中的Tb~(3+)室温发射。而且大尺寸高质量的TbP_5O_4晶体很难制备。然而最近日本国立无机材料研究所的M.Sekita及其同事报道了他们能生长TbAlO_3大单晶,其具有很强的Tb~(3+)室温发射[Applt phys Lett 65.2380～2382,1994.11.7]。该TbAlO_3大单晶是使用切克劳斯基晶体生长法在还原气氛中生长的。如果在惰性气氛中生长则样品含有 Although Tb ~ (3+) emission at room temperature in TbP_5O_4 was reported about 20 years ago, no one can detect the Tb ~ (3+) emission at room temperature in other Tb ions until today. And large size and high quality TbP_5O_4 crystal is difficult to prepare. Recently, however, M. Seki and his colleagues at the National Institute for Inorganic Materials reported that they can grow large single crystals of TbAlO 3 with a strong Tb 3+ emission at room temperature [Applt Phys Lett 65, 2380-2382, November 7, 1994] . The TbAlO 3 bulk single crystal is grown using a Czochralski crystal growth method in a reducing atmosphere. The sample contains if grown in an inert atmosphere