DETECTION OF SUBSURFACE OXYGEN ON CU(111) - CORRELATION OF 2ND-HARMONIC GENERATION AND AUGER-ELECTRON SPECTROSCOPY OBSERVATIONS

被引：14

作者：

BLOCH, J ^{[1
]}

BOTTOMLEY, DJ ^{[1
]}

JANZ, S ^{[1
]}

VANDRIEL, HM ^{[1
]}

机构：

[1] UNIV TORONTO,ONTARIO LASER & LIGHTWAVE RES CTR,TORONTO M5S 1A7,ONTARIO,CANADA

来源：

SURFACE SCIENCE | 1991年 / 257卷 / 1-3期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1016/0039-6028(91)90803-Z

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The incorporation of atomic oxygen into the Cu(111) subsurface at pressures of 2.5 x 10(-7) < P < 10(-2) Torr and temperatures of 300 < T < 800 K is demonstrated using second-harmonic generation and Auger electron spectroscopy. We have also been able to use in situ second-harmonic generation to time-resolve the incorporation of oxygen into the surface as well as its evacuation when high vacuum conditions are restored. It is shown that the temperature at which subsurface to surface transfer becomes significant is around 600 K, below which it is possible to trap the oxygen.

引用

页码：328 / 334

页数：7

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