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Effect of surface reconstruction on the apparent Arrhenius parameters for desorption

โœ Scribed by B. Hellsing; V.P. Zhdanov

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
405 KB
Volume
168
Category
Article
ISSN
0009-2614

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โœฆ Synopsis

The effect of adsorbate-induced surface reconstruction on the apparent preexponential factor and activation energy for desorption is analyzed and discussed. The reconstruction is assumed to be a continuous displacive phase transition caused by a Fermi surface instability. The adsorbate-induced changes in the surface are shown to result in a rather strong (of the order of 10') coverage dependence of the pre-exponential factor for desorption. The direction of the variation is in accordance with the compensation effect (the pre-exponential factor and activation energy decrease with increasing coverage.

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The apparent effect of sample surface da
The apparent effect of sample surface damage on the dielectric parameters of GaAs
โœ J.A.A. Engelbrecht; N.G. Hashe; K.T. Hillie; C.H. Claassens ๐Ÿ“‚ Article ๐Ÿ“… 2007 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 158 KB

The dielectric and optical parameters determined by infrared reflectance spectroscopy and computer simulation of a set of GaAs substrates of various surface topologies are reported. The influence of surface damage on the parameters is noted.