文献类型：期刊文献

英文题名：Structure of Reconstructed Cu(100) Surface Induced by Dissociative Adsorption of Gaseous Oxygen

作者：Dou, Wei-dong[1];Zhang, Han-jie[2]

机构：[1]Shaoxing Univ, Dept Phys, Shaoxing 312000, Peoples R China;[2]Zhejiang Univ, Dept Phys, Hangzhou 310027, Peoples R China

年份：2010

卷号：23

期号：1

起止页码：18

外文期刊名：CHINESE JOURNAL OF CHEMICAL PHYSICS

收录：SCI-EXPANDED(收录号：WOS:000275688500004)、、EI(收录号：20213210737943)、Scopus(收录号：2-s2.0-77949557612)、WOS

语种：英文

外文关键词：Gas adsorption - Oxygen - Electrons - Surface reconstruction - Photodissociation

外文摘要：The reconstructed structures of Cu(100) surface induced by O2 dissociative adsorption were investigated by low energy electron diffraction and scanning tunneling microscopy. At lower oxygen coverage, it was found that two reconstructed structures, i.e. c(2×2)-O and (ˉ2×2ˉ2) R45°-O are coexistent. The domain size of the c(2×2)-O structure decreased with the increasing of O2 exposure. The reconstructed structure at very small coverage was also investigated and a ''zigzag'' structure was observed at this stage. The ''zigzag'' structure was identified as boundaries of local c(2×2) domains. It was found that the strip region shows much stronger molecule-substrate interaction than that of oxygen covered regions, making it a proper template for patterned organic films. The sequence of the thermal stability was found as zigzag structure>c(2×2) >(ˉ2 ×2ˉ2)R45°-O. ? 2010 Chinese Physical Society.