Surface stress of clean and adsorbate-covered solids

Details Surface stress of clean and adsorbate-covered solids Surface stress of clean and adsorbate-covered solids

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001rpph...64..591h&link_type=abstract

Reports on Progress in Physics, Volume 64, Issue 5, pp. 591-648 (2001).

Physics

66

Scientific paper

Starting with a simple introduction into the phenomenon of surface stress from a thermodynamic as well as from an atomistic viewpoint, the currently available literature on surface stress of clean and adsorbate-covered surfaces is reviewed. The equations which are used to calculate the adsorbate-induced changes of the surface stress tensor from cantilever bending experiments are derived and their limitations are discussed. It is shown for several examples that charge transfer effects have a pronounced influence on the adsorbate-induced surface stress. The linear relation between surface stress and surface charge which has been observed experimentally at the metal-electrolyte interface is rationalized in the framework of thermodynamics. The role of surface stress as a driving force for surface reconstruction and for the structural organization of surfaces on a mesoscopic scale are discussed for a few selected examples. Novel applications of surface stress effects for sensor and actuator applications are described.

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