Excitation of Hydrogen Motion inside a Nickel Vacancy

F. Besenbacher*, J. K. Nørskov, M. J. Puska, S. Holloway

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

26 Citations (Scopus)
236 Downloads (Pure)

Abstract

By means of the ion-channeling technique, we have shown the existence of a very low-energy (1/43 meV) excitation for deuterium impurities trapped to vacancies in nickel. The excitation is associated with a change of the D location from near octahedral to near tetrahedral. On the basis of calculations of the D potentials within the effective-medium theory and the quantum treatment of the D motion, we suggest that the observed state can be regarded as an excited standing wave of a particle (D) on a sphere (internal surface around the vacancy).

Original languageEnglish
Pages (from-to)852-855
Number of pages4
JournalPhysical Review Letters
Volume55
Issue number8
DOIs
Publication statusPublished - 19 Aug 1985
MoE publication typeA1 Journal article-refereed

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