Field-ion microscopy of liquid-metal gallium

Toshio Sakurai; R. J. Culbertson; G. H. Robertson

doi:10.1063/1.90578

Field-ion microscopy of liquid-metal gallium

Toshio Sakurai, R. J. Culbertson, G. H. Robertson

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

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.

Original language	English (US)
Pages (from-to)	11-13
Number of pages	3
Journal	Applied Physics Letters
Volume	34
Issue number	1
DOIs	https://doi.org/10.1063/1.90578
State	Published - 1979
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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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.",

author = "Toshio Sakurai and Culbertson, {R. J.} and Robertson, {G. H.}",

year = "1979",

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AB - 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.

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Field-ion microscopy of liquid-metal gallium

Abstract

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