Structure analysis of an oxidized nickel (110) surface using low energy ion scattering

L. K. Verheij, J. A. Van Den Berg, D. G. Armour

Research output: Contribution to journalArticle

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Abstract

Low energy (6 keV) argon and neon ion scattering in the low angle mode (θ = 30°) has been used to investigate changes in the surface structure of a Ni(110) surface caused by the adsorption of oxygen at low exposures (10-6 Torr s). The experimental energy spectra indicate that due to adsorption of oxygen, the interatomic distance in the 〈1̄10〉 direction increases while in the 〈001̄〉 direction this distance seems to decrease. This represents strong evidence that a reconstruction process is taking place during the early stages of oxidation of the Ni(110) face, in which the interatomic distances in the 〈1̄10〉 direction doubles. The oxygen atoms were found to lie in or close to the nickel 〈001̄〉 rows. These results are not in agreement with recently published dynamical LEED calculations.

Original languageEnglish
Pages (from-to)408-426
Number of pages19
JournalSurface Science
Volume84
Issue number2
DOIs
Publication statusPublished - 1 Jun 1979
Externally publishedYes

Fingerprint

ion scattering
Nickel
nickel
Scattering
Ions
Oxygen
Neon
Adsorption
adsorption
Argon
oxygen
Surface structure
neon
energy
oxygen atoms
energy spectra
argon
Atoms
Oxidation
oxidation

Cite this

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abstract = "Low energy (6 keV) argon and neon ion scattering in the low angle mode (θ = 30°) has been used to investigate changes in the surface structure of a Ni(110) surface caused by the adsorption of oxygen at low exposures (10-6 Torr s). The experimental energy spectra indicate that due to adsorption of oxygen, the interatomic distance in the 〈1̄10〉 direction increases while in the 〈001̄〉 direction this distance seems to decrease. This represents strong evidence that a reconstruction process is taking place during the early stages of oxidation of the Ni(110) face, in which the interatomic distances in the 〈1̄10〉 direction doubles. The oxygen atoms were found to lie in or close to the nickel 〈001̄〉 rows. These results are not in agreement with recently published dynamical LEED calculations.",
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Structure analysis of an oxidized nickel (110) surface using low energy ion scattering. / Verheij, L. K.; Van Den Berg, J. A.; Armour, D. G.

In: Surface Science, Vol. 84, No. 2, 01.06.1979, p. 408-426.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Structure analysis of an oxidized nickel (110) surface using low energy ion scattering

AU - Verheij, L. K.

AU - Van Den Berg, J. A.

AU - Armour, D. G.

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AB - Low energy (6 keV) argon and neon ion scattering in the low angle mode (θ = 30°) has been used to investigate changes in the surface structure of a Ni(110) surface caused by the adsorption of oxygen at low exposures (10-6 Torr s). The experimental energy spectra indicate that due to adsorption of oxygen, the interatomic distance in the 〈1̄10〉 direction increases while in the 〈001̄〉 direction this distance seems to decrease. This represents strong evidence that a reconstruction process is taking place during the early stages of oxidation of the Ni(110) face, in which the interatomic distances in the 〈1̄10〉 direction doubles. The oxygen atoms were found to lie in or close to the nickel 〈001̄〉 rows. These results are not in agreement with recently published dynamical LEED calculations.

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