English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The neutralization of low energy Na$^+$ and Li$^+$ ions scattered from Aunanoclusters formed by deposition onto oxide surfaces decreases as the clustersize increases. An explanation for this behavior is provided here, which isbased on the notion that the atoms in the clusters are not uniformly charged,but that the edge atoms are positively charged while the center atoms arenearly neutral. This leads to upward pointing dipoles at the edge atoms thatincrease the neutralization probability of alkali ions scattered from thoseatoms. As the clusters increase in size, the number of edge atoms relative tothe number of center atoms decreases, so that that the average neutralizationalso decreases. Calculations employing this model are compared to experimentaldata and indicate good agreement if the strengths of the dipoles at the edgeatoms are assumed to decrease with cluster size. This model also explainsdifferences in the neutralization probabilities of scattered Na$^+$ and Li$^+$.

Inhomogeneous Charge Distribution Across Gold Nanoclusters Measured by Scattered Low Energy Alkali Ions