Quantum Dot and Hole Formation in Sputter Erosion

Details Quantum Dot and Hole Formation in Sputter Erosion Quantum Dot and Hole Formation in Sputter Erosion

2000-08-07

arxiv.org/abs/cond-mat/0008111v1

Physics

Condensed Matter

Scientific paper

10.1063/1.1343468

Recently it was experimentally demonstrated that sputtering under normal incidence leads to the formation of spatially ordered uniform nanoscale islands or holes. Here we show that these nanostructures have inherently nonlinear origin, first appearing when the nonlinear terms start to dominate the surface dynamics. Depending on the sign of the nonlinear terms, determined by the shape of the collision cascade, the surface can develop regular islands or holes with identical dynamical features, and while the size of these nanostructures is independent of flux and temperature, it can be modified by tuning the ion energy.

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