掺铕铌酸锂晶体的M■ssbauer谱

MoSSBAUER SPECTROSCOPY OF EUROPIUM DOPED LITHIUM NIOBATE CRYSTALS

测量了Ｅｕ：ＬｉＮｂＯ_３和（Ｅｕ，Ｍｇ）：ＬｉＮｂＯ_３的Ｍｓｓｂａｕｅｒ谱，并对数据进行了拟合。根据拟合结果和ＬｉＮｂＯ_３晶体结构的特征，讨论了Ｅｕ^（３＋）在晶格中的占位，并以Ｅｕ^（３＋）的参数为探针．讨论了Ｍｇ（２＋）在晶格中的占位。

The M ssbauer spectra of Eu: LiNbO_3 and(Eu,Mg):LiNbO_3 were measured and fitted.Based on the fitted results and the structural characteristics of LiNbO_3,the lattice position of Eu￣(3+)is discussed.Using Eu￣(3+)data as probe,the local position of Mg￣(2+)in the crystal is also discussed in the paper.