单晶体Cd_(1-x)Mn_xTe中的法拉第旋转(英文)  

Faraday Rotation in Cd_(1-x)Mn_xTe Single Crystals

作　　者：栾丽君[1,2] 介万奇[1] 

机构地区：[1]西北工业大学,陕西西安710072 [2]长安大学,陕西西安710061

出　　处：《稀有金属材料与工程》2009年第6期951-954,共4页Rare Metal Materials and Engineering

基　　金：Key Project of National Natural Science Foundation of China (50336040)

摘　　要：室温下测量了本实验室生长的Cd0.8Mn0.2Te和Cd0.9Mn0.1Te单晶体的法拉第旋转谱。通过提高布里渊区中心L点的能隙值(E1)改进了法拉第旋转的多振子模型。用改进的模型拟合实验结果,得到Cd0.8Mn0.2Te和Cd0.9Mn0.1Te单晶体布里渊区中心Γ点的能隙值(E0)分别为1.804eV和1.667eV。该E0值比以往任何研究都更接近于计算值。The Faraday rotation of Cd0.8Mn0.2Te and Cd0.9Mn0.1Te single crystals grown in our laboratory was measured at room temperature. We analyzed our Faraday rotation data in terms of a modified multi-oscillator model by improving the value of the band gap at L point in the Brillouin zone （E1） and obtained the values of the gap at the Гpoint in the Brillouin zone （E0） for Cd0.8Mn0.2Te and Cd0.9Mn0.1Te from the fitting to 1.667 eV and 1.804 eV, respectively. The values of E0 are more close to the calculated ones than nearly all of the previous studies.

关 键 词：法拉第旋转Cd1-xMnxTe 改进的多振子模型 垂直布里奇曼法 

分 类 号：O742[理学—晶体学]