Field-ion microscopy of liquid-metal gallium
- 1 January 1979
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 34 (1) , 11-13
- https://doi.org/10.1063/1.90578
Abstract
Ionization of liquid gallium coated on a tungsten field‐ion tip was investigated using a magnetic‐sector atom probe. For the first time, both the energy distribution of ionized Ga and its critical energy deficit with respect to a tip potential were measured as a function of field and tip temperature. Without heating the gallium, a stable Ga+ ion current of up to 10 μA was obtained from a small surface area of a tip with an energy distribution of less than 12 eV FWHM.Keywords
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