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The temperature effects on the field evaporation of atoms from a field emitter are numerically investigated by modeling the distribution of the electric field across the specimen surface. The field evaporation is described as an Arrhenius process with a field dependent activation barrier. The model can reproduce the experimentally observed dependence of the mean evaporation field with the temperature...
We have studied the correlation between field evaporated atoms during an atom probe tomography experiment. The evaporated atoms have been shown to be highly correlated both in time and in space. This correlation can be explained by the dynamic distribution of the electric field at the surface of the sample. The evaporation sequence follows the distribution of zones where the electric field intensity...
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