EXAFS and RDF measurements show that the AIF_3-YbF_2-BaF_2-SrF_2 glasses have the octahedral structure in which two fluorine atoms share a top point.

• EXAFS和RDF测定分析表明,AlF_3·YbF_3·BaF_2·SrF_2玻璃具有共顶的正八面体结构。