In-situ measurements of the lattice parameter of supported palladium clusters

Goyhenex, C.; Henry, C. R.; Urban, Joachim

doi:10.1080/01418619408242239

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

In-situ measurements of the lattice parameter of supported palladium clusters

MPS-Authors

/persons/resource/persons22190

Urban, Joachim
Fritz Haber Institute, Max Planck Society;

External Resource

No external resources are shared

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Goyhenex, C., Henry, C. R., & Urban, J. (1994). In-situ measurements of the lattice parameter of supported palladium clusters. Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties, 69(6), 1073-1084. doi:10.1080/01418619408242239.

Cite as: https://hdl.handle.net/21.11116/0000-0009-81DB-E

Abstract

Palladium clusters have been epitaxially grown under ultra-high vacuum (UHV) on MgO(100) surfaces cleaved in situ. The lattice parameter was measured in situ by surface electron energy-loss fine-structure spectroscopy (SEELFS) above the palladium N₂₃ edge. The size distribution of the clusters was obtained from ex-situ transmission electron microscopy. An expansion of the palladium lattice, increasing on decrease in the mean cluster size, has been observed. From the UHV in-situ measurements the lattice dilatation is attributed to pseudomorphism. With the SEELFS technique the Debye-Waller factor was also determined. An increase in the mean square displacement of the atoms was observed when the cluster size decreased; the latter was explained by the increase in the proportion of surface atoms and by the effect of the lattice dilatation.