Enhanced Vibrations at Surfaces with Back-Bonds Nearly Parallel to the Surface†

Enhanced Vibrations at Surfaces with Back-Bonds Nearly Parallel to the Surface

It has been discovered that several very different surfaces exhibit a common property: unusually large vibration amplitudes of the outermost atoms, well beyond the enhancement normally expected at typical clean surfaces. These special surfaces are: ice H2O(0001), α-Al2O3(0001), α-Ga(010) and Si(111)-(2x1). The root-mean-square vibration amplitudes in these surfaces are at least double the bulk ...

Vibrations at surfaces.

LOW-ENERGY-ION ENHANCED DIFFUSION AT THE SURFACE OF METALS

Radiation enhanced diffusion at the surface of metals has been observed and studied for low-energy nitrogen ions at the surface of copper. The displacement of the target atoms during irradiation creates vacancies and other defects near the surface, thus enhancing the diffusion of implanted materials toward the surface and also into the solid. The mechanism has been studied here by a specia...

low-energy-ion enhanced diffusion at the surface of metals

radiation enhanced diffusion at the surface of metals has been observed and studied for low-energy nitrogen ions at the surface of copper. the displacement of the target atoms during irradiation creates vacancies and other defects near the surface, thus enhancing the diffusion of implanted materials toward the surface and also into the solid. the mechanism has been studied here by a special met...

Nearly Uniform Sampling on Surfaces with Applications to Motion Planning

Uniform sampling on/near the surfaces of complex geometric objects has application in mesh generation, remodeling, motion planning, and others. In short, it provides an alternate and approximate way to represent the object which for some applications can be used in place of the original object, either to save computation time or to remove detail that is not needed, and perhaps even distracting....