Oxide formation on rare earth/transition metal and bimetallic transition metal thin films: modeling the effect of fourth element modifiers on O2 and H2O surface chemistries

Paul A. Lee, Neal R Armstrong

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1 Citation (Scopus)

Abstract

The chemical reactions undergone by both O2 and H2O on (a) rare earth (Tb), (b) rare-earth transition metal alloy (FeTbCo), (c) transition metal (Fe and Ti), and (d) transition metals, modified with thin overlayers of another metal (Fe/Ti), have been studied by surface photoelectron spectroscopies, starting with the clean metals in UHV environment. Various degrees of reactivity are indicated, especially for adsorption and dissociation of H2O, depending upon whether the pure metals are studied, or mixtures of metals, which change the type and extent of dissociation of H2O (oxide vs. hydroxide formation).

Original languageEnglish (US)
Pages (from-to)159-163
Number of pages5
JournalJournal of Magnetism and Magnetic Materials
Volume93
Issue numberC
DOIs
StatePublished - 1991

Fingerprint

Surface chemistry
Oxides
Rare earths
Transition metals
rare earth elements
Metals
transition metals
chemistry
Thin films
oxides
thin films
metals
Transition metal alloys
dissociation
Photoelectron spectroscopy
hydroxides
Chemical reactions
chemical reactions
reactivity
photoelectron spectroscopy

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

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T2 - modeling the effect of fourth element modifiers on O2 and H2O surface chemistries

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AU - Armstrong, Neal R

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AB - The chemical reactions undergone by both O2 and H2O on (a) rare earth (Tb), (b) rare-earth transition metal alloy (FeTbCo), (c) transition metal (Fe and Ti), and (d) transition metals, modified with thin overlayers of another metal (Fe/Ti), have been studied by surface photoelectron spectroscopies, starting with the clean metals in UHV environment. Various degrees of reactivity are indicated, especially for adsorption and dissociation of H2O, depending upon whether the pure metals are studied, or mixtures of metals, which change the type and extent of dissociation of H2O (oxide vs. hydroxide formation).

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