用低能电子衍射研究CU(001)表面吸附碲的表面原子结构

STUDY SURFACE ATOMIC STRUCTURE OF TELLRIUM ADSORBED ON THE Cu(001) SURFACE BY LOW-ENERGY ELECTRON DIFFRACTION

本文提出了一个由低能电子衍射能带理论计算所确-定的,在Cu(001)表面的4重对称空隙上吸附Te原子的吸附层模型。原子层间距d_1=1.633±0.004,d_2=1.943±0.007(膨胀7.6％±0.007)。

In this paper, a adsorbed-layer model with each of the Te atoms on fourfold symmeterical hollows of the Cu(001) surface determined from band theory calculation of Low-Energy Electron Diffraction are presented. The atomic layer distance . d1 =1.633±0.004A and d2 = 1.943±0,007A (expanded 7.6%±0.007A).