Probing the surface structure via the adsorbed hydrogen atoms – The case of Cu(4 1 0)

Jessiel Siaron Gueriba, Wilson Agerico Diño, Seigi Mizuno, Michio Okada

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

We show how we could determine (or at least qualitatively deduce) the displacements of surface atoms with respect to an arbitrarily chosen reference, from the trends in the vibrational frequencies of adsorbed hydrogen atoms. The discernible displacement could be as small as 0.1 Å. As a test structure, we consider the case of Cu(4 1 0), which has remained contentious, until recently. Any slight (ca. 0.1 Å) displacement of Cu(4 1 0) surface atoms with respect to an arbitrarily chosen reference structure manifests as either a broadening or narrowing of the corresponding H-Cu(4 1 0) potential energy curve. This suggests the possibility of carry out adsorbate mediated surface analysis, with hydrogen as the (chosen) adsorbate, in this case.

Original languageEnglish
Article number146433
JournalApplied Surface Science
Volume528
DOIs
Publication statusPublished - Oct 30 2020

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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