Anomalous growth of Ba on Ag(111)

O. M. N. D. Teodoro; J. Los; A. M. C. Moutinho

doi:10.1116/1.1486229

Anomalous growth of Ba on Ag(111)

O. M. N. D. Teodoro, J. Los, A. M. C. Moutinho

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

4 Citations (Scopus)

Abstract

The deposition of barium over Ag(111) was examined and found not to lead to any standard growth mode. Silver atoms diffused interstitially to the surface, preventing the work function from reaching the bulk barium value and the silver Auger signal to decrease to ratio. A low surface energy intermetallic compound formed. Coadsorption of oxygen blocked further diffusion and the barium may then grow without silver.

Original language	English
Pages (from-to)	1379-1383
Number of pages	5
Journal	Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
Volume	20
Issue number	4
DOIs	https://doi.org/10.1116/1.1486229
Publication status	Published - 1 Jul 2002

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abstract = "The deposition of barium over Ag(111) was examined and found not to lead to any standard growth mode. Silver atoms diffused interstitially to the surface, preventing the work function from reaching the bulk barium value and the silver Auger signal to decrease to ratio. A low surface energy intermetallic compound formed. Coadsorption of oxygen blocked further diffusion and the barium may then grow without silver.",

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N2 - The deposition of barium over Ag(111) was examined and found not to lead to any standard growth mode. Silver atoms diffused interstitially to the surface, preventing the work function from reaching the bulk barium value and the silver Auger signal to decrease to ratio. A low surface energy intermetallic compound formed. Coadsorption of oxygen blocked further diffusion and the barium may then grow without silver.

AB - The deposition of barium over Ag(111) was examined and found not to lead to any standard growth mode. Silver atoms diffused interstitially to the surface, preventing the work function from reaching the bulk barium value and the silver Auger signal to decrease to ratio. A low surface energy intermetallic compound formed. Coadsorption of oxygen blocked further diffusion and the barium may then grow without silver.

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Anomalous growth of Ba on Ag(111)

Abstract

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