Abstract
The influence of quantum size effects and atomic geometry on the field emission characteristics (energy distribution, intensity-voltage, angular spread of the emitted beam, resolution) of atomic-size microtips is analyzed. Theoretical models are propose to analyze the influence of atomic-size protrusions on the properties of the emitted beam. It is shown that a tip with a small protrusion can be used as a source of very collimated electron beams. The conditions under which is it possible to obtain atomic resolution are discussed. Simple formulas relating the angular spread and the resolution with the experimental parameters are presented. Field emission experiments on “build up” and “teton” tips are presented together with the basic principles of the fabrication technique.
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Saenz, J.J., Garcia, N., Vu, T.B., De Raedt, H. (1990). Field Electron Emission from Atomic-Size Microtips. In: Behm, R.J., Garcia, N., Rohrer, H. (eds) Scanning Tunneling Microscopy and Related Methods. NATO ASI Series, vol 184. Springer, Dordrecht. https://doi.org/10.1007/978-94-015-7871-4_24
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DOI: https://doi.org/10.1007/978-94-015-7871-4_24
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