Influence of oxygen dissolution history on reconstruction behavior of a stepped metal surface

We have observed that the reconstruction dynamics for stepped Ni(9 7 7) are influenced by the oxygen dissolution history of the crystal. Using a complementary approach incorporating both real- and reciprocal-space techniques, it is found that the upper end of the thermal range over which this steppe...

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Bibliographic Details
Published inChemical physics letters Vol. 364; no. 3; pp. 284 - 289
Main Authors Pearl, T.P, Darling, S.B, Niu, L, Koleske, D.D, Gaspar, D.J, King, S.F, Sibener, S.J
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 04.10.2002
Elsevier Science
Subjects
Applied sciences
Condensed matter: structure, mechanical and thermal properties
Exact sciences and technology
Metals. Metallurgy
Physics
Solid surfaces and solid-solid interfaces
Surface structure and topography
Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties)
Surface reconstruction
Absorption
Temperature effects
Transition elements
Thermodynamic stability
Nickel
Oxidation
Step
Experimental study
Heat treatments
Kinetic instability
Surface structure
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Summary:We have observed that the reconstruction dynamics for stepped Ni(9 7 7) are influenced by the oxygen dissolution history of the crystal. Using a complementary approach incorporating both real- and reciprocal-space techniques, it is found that the upper end of the thermal range over which this stepped metal surface transforms from single to double steps increases with selvedge or sub-surface oxygen concentration. These results enhance our understanding of how adsorbate dissolution, and hence oxygen exposure history, modify energetic pathways for metallic oxidation.
ISSN:0009-2614
1873-4448
DOI:10.1016/S0009-2614(02)01287-3