Related Experiment Video
Updated: Oct 7, 2026

Measuring Sensitivity to Viewpoint Change with and without Stereoscopic Cues
Published on: December 4, 2013
GaAs(2 5 11): a new stable surface within the stereographic triangle
L Geelhaar1, J Márquez, P Kratzer
1Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany.
Abstract:
The atomic structure of GaAs(2 5 11), a hitherto unknown stable surface, has been determined by in situ scanning tunneling microscopy and first-principles electronic structure calculations. This orientation is located within the stereographic triangle, i.e., far away from all low-index surfaces. A low-energy ( 1x1) reconstruction containing arsenic dimers forms on the surface. The analysis of the surface structure shows that, for semiconductor surfaces, the gain in stability due to minimization of the number of dangling bonds is more important than the gain from rendering a semiconducting ground state.
Related Concept Videos
Tangent Planes to Level Surfaces
Tangent Planes to Surfaces
Quadric Surfaces
Oriented Surfaces
Tangent Planes to a Parametric Surface
Cylinders in Three-Dimensional Space
