Mn_xZn_yBe_(1-x-y)Se半导体混晶中光学声子的研究

Investigations of Optical Phonons in Mn_xZn_yBe_(1-x-y)Se Mixed Crystals

在随机元素等位移(MREI)模型的基础上,运用推广后的适用于任意多元混晶的理论,计算了MnxZnyBe1-x-ySe半导体混晶的光学声子性质随组分比的变化关系。比较了四元混晶的理论结果和实验数据,两者符合较好,同时对今后的实验给出了一定程度的指导。

Based on the modified random-element isodisplacement （MREI） model, the relationship between optical phonon character and elemental composition of semiconductor mixed crystal MnxZnyBe1-x-y Se has been studied in the quidance of the extend theory for multiple mixed crystals. We compare the theoretical results and experimental data, and find they meet well with each other. The results may be helpful to future experiments to some extent.