A LEED STUDY OF THE (0001) ALPHA-QUARTZ SURFACE RECONSTRUCTION

被引：34

作者：

BART, F ^{[1
]}

GAUTIER, M ^{[1
]}

机构：

[1] FISONS INSTRUMENTS SA,F-94110 ARCUEIL,FRANCE

来源：

SURFACE SCIENCE | 1994年 / 311卷 / 1-2期

关键词：

D O I：

10.1016/0039-6028(94)90471-5

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：

This paper presents a low energy electron diffraction study of the alpha-SiO2(0001) surface structure modifications induced by thermal treatments under air. A reconstruction was observed as soon as the air heating temperature was greater than 600-degrees-C. The reconstructed mesh area is 84 times greater than the initial one. A preliminary interpretation in relation with the alpha-beta transition phase of quartz occurring at 573-degrees-C is suggested. In particular, the observed rotation angle (11-degrees) between the initial and the reconstructed surface lattices would be possibly related to the orientation of the triangular Dauphine domains observed near the transition temperature.

引用

页码：L671 / L676

页数：6

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