AUGER-ELECTRON SPECTROSCOPY OF THE HIGH-TC SUPERCONDUCTOR BI2SR2CACU2O8 - SPONTANEOUS RECONSTRUCTION AFTER EROSION OF THE BIOSURFACE LAYER

被引：4

作者：

BOULESTEIX, C ^{[1
]}

BADECHE, T ^{[1
]}

GUGLIELMACCI, JM ^{[1
]}

机构：

[1] FAC SCI & TECH ST JEROME,MICROSCOPIE & DIFFRACT ELECTRON LAB,CNRS,URA 797,F-13397 MARSEILLE 13,FRANCE

来源：

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 1992年 / 14卷 / 02期

关键词：

D O I：

10.1016/0921-5107(92)90115-P

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Auger electron spectroscopy of Bi2Sr2CaCu2O8 surfaces gives clearly distinguishable Auger lines of all the elements. The main lines for the different elements are: Cu M23M45M45 (Cu1:63 eV) O KL23L23 (O1:515 eV); Bi N5N7N7 (Bi1:101 eV); Sr M5N23N23 (Sr3: 90 eV); and Ca L3M23M23 (cal: 290 eV). After erosion of one or two layers by Ar+ ion bombardment, the intensity of the bismuth line is reduced while the intensity of the calcium line is increased, indicating as expected that the surface layer is a BiO layer. After a few minutes this new spectrum spontaneously turns back into the first one, indicating the surface layer to be spontaneously rebuilt.

引用

页码：163 / 165

页数：3