OXYGEN-ADSORPTION OBSERVED DURING THE EPITAXY OF V(110) ON THE (11(2)OVER-BAR0) ALPHA-AL2O3 SURFACE

被引：8

作者：

KIERREN, B

GOURIEUX, T

BERTRAN, F

KRILL, G

机构：

[1] Laboratoire de Physique du Solide (URA CNRS 155), Université de Nancy I, F-54506 Vandœuvre-les-Nancy

来源：

APPLIED SURFACE SCIENCE | 1993年 / 68卷 / 03期

关键词：

D O I：

10.1016/0169-4332(93)90254-9

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：

Oxygen structures (c(6 x 2) and p(11 x 4)) have been observed during the epitaxy of V(110) on a (1120BAR) alpha-Al2O3 surface. The p(11 x 4)-O structure is reported for the first time. Results based on Auger spectroscopy show that the oxygen coverage for the p(11 x 4) structure must be approximately 20% smaller than that for the c(6 x 2) structure. In-plane parameters deduced from RHEED patterns observed on the initial sapphire surface are in accordance with the parameters of the oxygen sub-lattice of sapphire. A clean V(110) surface is obtained after several hours of successive annealing and ion bombardment.

引用

页码：341 / 345

页数：5

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