A LEED study of the (0001) a-quartz surface reconstruction

Autor:	Martine Gautier, Florence Bart
Rok vydání:	1994
Předmět:	Low-energy electron diffraction business.industry Chemistry Transition temperature Surfaces and Interfaces Condensed Matter Physics Rotation Molecular physics Surfaces Coatings and Films Optics Orientation (geometry) Phase (matter) Thermal Materials Chemistry business Quartz Surface reconstruction
Zdroj:	Surface Science. 311:L671-L676
ISSN:	0039-6028
DOI:	10.1016/0039-6028(94)90471-5
Popis:	This paper presents a low energy electron diffraction study of the α-SiO 2 (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°C. The reconstructed mesh area is 84 times greater than the initial one. A preliminary interpretation in relation with the α-β transition phase of quartz occurring at 573°C is suggested. In particular, the observed rotation angle (11°) 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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::cf83957769575fd7db6c2fe54bc169a1 https://doi.org/10.1016/0039-6028(94)90471-5 Zobrazit plný text záznamu