Condensation of Tungsten on Tungsten in Atomic Detail: Monte Carlo and Statistical Calculations vs Experiment

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Abstract
The preceeding paper reports the arrangement of tungsten atoms evaporated onto a low-temperature tungsten substrate. The present paper gives the results of Monte Carlo and statistical calculations assuming that the condensing atoms either remain in the first potential well they encounter upon contacting the surface (migration-free condensation) or make one or more surface migration ``jumps'' before being permanently bound. A comparison of the two calculations with experimental results leads to the conclusion that, at least below 77°K, tungsten atoms remain in the first potential well they encounter. It is shown that migration-free condensation is predicted by a one-dimensional calculation. Caution must be exercised in applying one-dimensional calculations to real surfaces.

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