Azimuthal dependence of classical over-barrier hopping diffusion of hydrogen on a vicinal Ni(111) surface

E. Nabighian, X. D. Zhu

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

Using an unusual arrangement of optical techniques, we studied the full azimuthal dependence of hydrogen diffusion on a 0.1°-miscut Ni(111) surface vs temperature. From such a dependence, we arrived at the conclusion that the extra energy barrier for a hydrogen adatom to cross a [110] step edge must be less than 60 meV or 1.5 kcal/mol.

Original languageEnglish (US)
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume58
Issue number12
StatePublished - Sep 15 1998

ASJC Scopus subject areas

  • Condensed Matter Physics

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