Field evaporation experiments with a magnetic sector atom-probe FIM

Toshio Sakurai; Erwin W. Müller

doi:10.1016/0039-6028(75)90232-0

Field evaporation experiments with a magnetic sector atom-probe FIM

Toshio Sakurai, Erwin W. Müller

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

Abstract

A magnetic sector atom-probe FIM has been successfully operated for dc field evaporation of tip materials such as Rh, W, Ir, Mo and Ti. A limited number of evaporated metal ions were clearly identified forming a line spectrum. Field evaporation of Rh in the presence of ³He and ⁴He gases showed that the formation of the helium compound (RhHe)²⁺ is quite sensitive to He gas pressure; no helium compound were observed below 5 × 10^-7 Torr and all ions detected as helium compound above 5 × 10^-5 Torr at 78 K.

Original language	English
Pages (from-to)	38-44
Number of pages	7
Journal	Surface Science
Volume	51
Issue number	1
DOIs	https://doi.org/10.1016/0039-6028(75)90232-0
Publication status	Published - 1975

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Condensed Matter Physics
Surfaces and Interfaces

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abstract = "A magnetic sector atom-probe FIM has been successfully operated for dc field evaporation of tip materials such as Rh, W, Ir, Mo and Ti. A limited number of evaporated metal ions were clearly identified forming a line spectrum. Field evaporation of Rh in the presence of 3He and 4He gases showed that the formation of the helium compound (RhHe)2+ is quite sensitive to He gas pressure; no helium compound were observed below 5 × 10-7 Torr and all ions detected as helium compound above 5 × 10-5 Torr at 78 K.",

author = "Toshio Sakurai and M{\"u}ller, {Erwin W.}",

year = "1975",

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AU - Müller, Erwin W.

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AB - A magnetic sector atom-probe FIM has been successfully operated for dc field evaporation of tip materials such as Rh, W, Ir, Mo and Ti. A limited number of evaporated metal ions were clearly identified forming a line spectrum. Field evaporation of Rh in the presence of 3He and 4He gases showed that the formation of the helium compound (RhHe)2+ is quite sensitive to He gas pressure; no helium compound were observed below 5 × 10-7 Torr and all ions detected as helium compound above 5 × 10-5 Torr at 78 K.

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Field evaporation experiments with a magnetic sector atom-probe FIM

Abstract

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