（Hg_（0．69）Pb_（0．31））Ba_2Ca_2Cu_3O_（8＋δ）的  

The Surface Analysis Study of (Hg_(0.69) Pb_(0.31)) Ba_2Ca_2Cu_3O_(8+δ)

作　　者：邵力为[1] 

机构地区：[1]东南大学分析测试中心

出　　处：《真空电子技术》1997年第5期21-24,共4页Vacuum Electronics

摘　　要：本文采用溅射中性粒子质谱仪（ＳＮＭＳ），俄歇电子谱仪（ＡＥＳ）和Ｘ光电子能谱仪（ＸＰＳ）研究分析了汞系超导材料的表面状况，其中Ｈｇ元素在超导体表面的ＨｇＯ和游离态Ｈｇ并存，Ｐｂ元素在超导体表面的富集等分析结果表明，汞系超导材料存在着表面不稳定性和表面钉扎效应的表面特性。A surface state of the (Hg0.69 Pb0.31) Ba2Ca2Cu3O8+δ superconductor is performed by means of sputtered neutral particle mass spectroscopic (SNMS),Auger electron spectroscopic (AES) and X-ray photoelectron spectroscopic (XPS) analyses. Results of our analysis indicate that there are together with the HgO and Hg on the surface of sample,the Ph-enriched regions formed on the surface layer. They probably play the role of surface instability and the role of flux Pinning effect.

关 键 词：表面分析 超导体 表面特性 

分 类 号：TM260.13[一般工业技术—材料科学与工程]