Compression for data archiving and backup revisited
Corneliu Constantinescu
SPIE Optical Engineering + Applications 2009
Cleaved GaAs(110) surfaces are exposed to Cl2 at room temperature and then examined by surface-sensitive soft X-ray photoelectron spectroscopy of the valence, As 3d, and Ga 3d levels. The results show that AsCl, AsCl2, and GaCl all form on the surface after small exposures, while GaCl2 forms after larger exposures. A detailed analysis of the data shows that, after the initial Cl2 exposures, Ga and As atoms are anisotropically etched from the surface, with Ga being removed first. As a consequence of the etching process, a number of Ga and As atoms are stabilized in sub-surface three-fold sites. After larger exposures, the surface is considerably roughened. © 1994.
Corneliu Constantinescu
SPIE Optical Engineering + Applications 2009
Ronald Troutman
Synthetic Metals
Mark W. Dowley
Solid State Communications
R.D. Murphy, R.O. Watts
Journal of Low Temperature Physics