Mass spectrometry of cluster cations produced by laser ablation of metal-composite-oxides Y-M-Cu-O (

• 作 者: 黄荣彬 刘朝阳 张力 黄丰 赵剑虹 林逢辰 郑兰荪
• 机 构: State Key Laboratory for Physical Chemistry on Solid Surface, Department of Chemistry, Xiamen Univer
• 出 处: Progress in Natural Science
• 发表日期: 1995年03期
• 关键词: ablation alkali replaced YBCO spectro superconductor holder preparations pulsed

Three series of metal-oxide cluster cations were produced by pulsed-laser ablation of YBa2Cu3O7=x high-temperature superconductive material in high vacuum. While Ba in the composite-oxide was replaced by other alkali-earth metal, such as Sr, Ca, Mg, the compositions of produced cluster ions were different. After analysis of the compositions of the cluster ions as well as their relative signal intensities, the interactions between the components of the metal-composite-oxide samples were studied.

Three series of metal-oxide cluster cations were produced by pulsed-laser ablation of YBa2Cu3O7 = x high-temperature superconductive material in high vacuum. While Ba in the composite-oxide was replaced by other alkali-earth metals, such as Sr, Ca, Mg, the compositions of produced cluster ions were different. After analysis of the compositions of the cluster ions as well as their relative signal intensities, the interactions between the components of the metal-composite-oxide samples were studied.