Zn_(1-x)Mn_xSe中Mn^(2+)电子自旋翻转能级的光致发光谱

Photoluminescence of the Mn 2+ Intra d Spin flip Transition for Zn 1- x Mn x Se

用光致发光谱（ＰＬ）方法研究不同温度下Ｚｎ１－ｘＭｎｘＳｅ中Ｍｎ＋＋内部３ｄ壳层电子４Ｔ１（４Ｇ）→６Ａ１（６Ｓ）跃迁的发光特性．实验结果表明，随着温度的升高，Ｚｎ１－ｘＭｎｘＳｅ（ｘ＝０．１１，０．１７）的发光谱的发光峰位置产生蓝移，这一变化规律主要是由于温度升高引起晶格膨胀。

The 4 T 1( 4G)→ 6A 1( 6S) emission of Mn 2+ intra d transition has been studied by photoluminescence at different temperatures ( T =10 K, 100 K,200 K, 300 K). It is shown that the emission band shifts to blue as temperature increases. Such blue shift is due to the thermal expansion of the lattice, which weakens the effect of ligand field acting on Mn 2+ ions.