In situ Heating and Thermal Effects in Auger Electron Spectroscopy for GaN  

作　　者：Fu-chun Xu Qi-he Zhang Dan-xia Cen 

机构地区：[1]Analysis and Testing Centre [2]Department of Physics, Xiamen University, Xiamen 361005, China

出　　处：《Chinese Journal of Chemical Physics》2006年第3期200-202,共3页化学物理学报（英文）

基　　金：The author would like to express thanks to Professor Jun-yong Kang and Dr. Duan-jun Cai for their valuable discussions. This work was partly supported by the National Nature Science Foundation of China （No.60206030, No.10134030 and No.69976023） and the Natural Science Found of Xiamen University （No.B200337）.

摘　　要：An in situ heating system was built for the Auger electron spectroscopy to investigate the thermal effect of Auger lines. A GaN sample was studied in this system. The kinetic energy of Ga LMM and MVV Auger lines were observed to shift negatively with temperature increasing. By using ab initio calculation, the theoretical Ga MVV Auger line shape was fit, which well reflects the inner property of the line. The Auger shift with heating is related with the valence electron rearrangement in the thermal expansion of the local bonds.

关 键 词：Ultra-high-vacuum Auger electron spectroscopy Heating system In situ Auger line shape 

分 类 号：O614.371[理学—无机化学] O582[理学—化学]