Quantitative surface analysis of NbxTa1-x alloys by low-energy ion scattering

L.C.A. van den Oetelaar; J.-P. Jacobs; M.J. Mietus; H.H. Brongersma; V.N. Semenov; V.G. Glebovsky

doi:10.1016/0169-4332(93)90402-W

Quantitative surface analysis of Nb_xTa_1-x alloys by low-energy ion scattering

L.C.A. van den Oetelaar, J.-P. Jacobs, M.J. Mietus, H.H. Brongersma, V.N. Semenov, V.G. Glebovsky

Onderzoeksoutput: Bijdrage aan tijdschrift › Tijdschriftartikel › Academic › peer review

5 Citaten (Scopus)

Samenvatting

The surface composition of a series of Nb_xTa_1-x(110) alloys (x = 0, 0.25, 0.5, 0.75, or 1), prepared by electron beam zone melting, has been studied by low-energy ion scattering (LEIS). LEIS shows the enrichment of tantalum at the surface of all alloys. After exposure to oxygen, linear relationships between the oxygen and both the niobium and tantalum signals demonstrate that matrix effects do not influence LEIS signals for these systems. The maximum oxygen coverages of the different alloys are determined by calibration against the Ni(100)-O c(2 X 2) surface.

Originele taal-2	Engels
Pagina's (van-tot)	79-84
Aantal pagina's	6
Tijdschrift	Applied Surface Science
Volume	70-71
Nummer van het tijdschrift	PART 1
DOI's	https://doi.org/10.1016/0169-4332(93)90402-W
Status	Gepubliceerd - 2 jun. 1993

Bibliografische nota

Funding Information:
The authorsw ish to thank Dr. L.J. van IJzen-doorn for providingt he RBS measurementsT.h e investigationsw ere supported in part by the Technology Foundation (STW) and the Netherlands’ Foundation of Chemical Research (SON) with financial aid from the Netherlands’O rgani-zation of the Advancemento f Scientific Research (NWO).

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10.1016/0169-4332(93)90402-W

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title = "Quantitative surface analysis of NbxTa1-x alloys by low-energy ion scattering",

abstract = "The surface composition of a series of NbxTa1-x(110) alloys (x = 0, 0.25, 0.5, 0.75, or 1), prepared by electron beam zone melting, has been studied by low-energy ion scattering (LEIS). LEIS shows the enrichment of tantalum at the surface of all alloys. After exposure to oxygen, linear relationships between the oxygen and both the niobium and tantalum signals demonstrate that matrix effects do not influence LEIS signals for these systems. The maximum oxygen coverages of the different alloys are determined by calibration against the Ni(100)-O c(2 X 2) surface.",

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AU - van den Oetelaar, L.C.A.

AU - Jacobs, J.-P.

AU - Mietus, M.J.

AU - Brongersma, H.H.

AU - Semenov, V.N.

AU - Glebovsky, V.G.

N1 - Funding Information: The authorsw ish to thank Dr. L.J. van IJzen-doorn for providingt he RBS measurementsT.h e investigationsw ere supported in part by the Technology Foundation (STW) and the Netherlands’ Foundation of Chemical Research (SON) with financial aid from the Netherlands’O rgani-zation of the Advancemento f Scientific Research (NWO).

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AB - The surface composition of a series of NbxTa1-x(110) alloys (x = 0, 0.25, 0.5, 0.75, or 1), prepared by electron beam zone melting, has been studied by low-energy ion scattering (LEIS). LEIS shows the enrichment of tantalum at the surface of all alloys. After exposure to oxygen, linear relationships between the oxygen and both the niobium and tantalum signals demonstrate that matrix effects do not influence LEIS signals for these systems. The maximum oxygen coverages of the different alloys are determined by calibration against the Ni(100)-O c(2 X 2) surface.

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