Symmetric faceting of a sapphire vicinal surface revealed by grazing incidence small-angle X-ray scattering 3D mapping
A one dimensional periodic vicinal surface of sapphire was obtained through a self-ordering process after high-temperature thermal treatment. The morphology of the surface is described as an assembly of prisms exhibiting a rectangular base and a triangular profile orthogonal to the mean surface. Car...
Gespeichert in:
Veröffentlicht in: | Applied physics letters 2017-07, Vol.111 (3) |
---|---|
Hauptverfasser: | , , , , , , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | A one dimensional periodic vicinal surface of sapphire was obtained through a
self-ordering process after high-temperature thermal treatment. The morphology of the
surface is described as an assembly of prisms exhibiting a rectangular base and a
triangular profile orthogonal to the mean surface. Careful measurements of the whole 3D
reciprocal map around the origin of the reciprocal space were performed through grazing
incidence small-angle X-ray scattering experiments combined with a strict orientation
procedure with respect to specific crystallographic directions of the sapphire crystal. We
were thus able to determine accurately the actual shape of the prisms, which exhibit an
isosceles triangular profile. Such a profile symmetric with respect to a plane normal to
the mean sapphire vicinal surface has never been reported. |
---|---|
ISSN: | 0003-6951 1077-3118 |
DOI: | 10.1063/1.4985339 |