CO在Cs/Ru(100)表面上吸附的ARUPS研究

• 作 者: 李海洋 鲍世宁 张训生 范朝阳 冯小松 徐亚伯
• 机 构: 浙江大学物理系!杭州310027,浙江大学物理系!杭州310027,浙江大学物理系!杭州310027,浙江大学物理系!杭州310027,浙江大学物理系!杭州310027,浙江大学物理系!杭州31002
• 出 处: 物理化学学报
• 发表日期: 1996年11期
• 关键词: 紫外光电子谱 一氧化碳 倾斜吸附 暴露量 射角 盖度 非偏振光 低能电子衍射 入射角 过渡金属

CO adsorption on Ru(100) and Cs/Ru(10O) surfaces has been investigated using ARUPS, at low temperature 150K. The 5σ+1π and 4σ levels of CO molecule were　found in angle-rcsolved UP spectra showing that CO is in molecular adsorption states on clean and Cs precovercd Ru(100). The dependence of CO 4σ intensity on incident angle suggests that adsorbed CO stands upright on clean Ru(100) surface; But adsorbed CO, with a short-range interaction with Cs atom [15], does not stand upright and tilts in <1210> azimuth on a Cs-precovered Ru(100) surface.

CO adsorption on Ru (100) and Cs / Ru (10O) surfaces has been investigated using ARUPS, at low temperature 150K. The 5σ + 1π and 4σ levels of CO molecules were found in angle-rcsolved UP spectra showing that CO is in molecular adsorption states on clean and Cs precovercd Ru (100). The dependence of CO 4σ intensity on incident angle suggests that adsorbed CO stands upright on clean Ru (100) surface; But adsorbed CO, with a short-range interaction with Cs atom [15 ], does not stand upright and tilts in <1210> azimuth on a Cs-precovered Ru (100) surface.