Study of Semiconductor Super Thin Heterostructures with Synchrotron Radiation X-Ray Standing Wave Technique |
| |
Authors: | JIANG Xiao-Ming JIA Quan-Jie HU Tian-Dou HUANG Yu-Ying ZHENG Wen-Li HE Wei XIAN Ding-Chang SHI Bin JIANG Zui-Min WANG Xun |
| |
Institution: | Institute of High Energy Physics, CAS, Beijing 100039,China1 Surface Physics National Key Lab., Fudan University, Shanghai 200433,China |
| |
Abstract: | The X ray standing wave experiment method is established with the double-crystal monochromator and precision 2-circle goniometer at Beijing Synchrotron Radiation Facility. It is used combined with the X-ray diffraction, to investigate the heterostructure of super thin Ge atomic layer within Si crystals. The results show that the Ge x Si1-x alloy layer with average x=0.13 was formed in the Si crystal sample due to the segregation of Ge atoms during the preparation. Due to the diffusion of Ge atoms to the crystal surface, the Gex Si1-x alloy layer was disappeared and nearly pure Ge layer was formed on the Si crystal surface after annealing at 650℃. |
| |
Keywords: | |
|
| 点击此处可从《中国物理C(英文版)》浏览原始摘要信息 |
| 点击此处可从《中国物理C(英文版)》下载免费的PDF全文 |