Surface melting on small particles

Kevin F. Peters*, Yip Wah Chung, Jerome B. Cohen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

87 Scopus citations

Abstract

Surface melting on small particles was detected using x-ray diffraction from Pb crystallites of 50 nm diam in ultrahigh vacuum. Since the melting temperature depends on particle size, it can be difficult to distinguish between the melting and surface melting. A sharp crystallite size attribution is obtained by melting the smaller particles while a liquid skin forms on the remaining crystallites. When the sample is cooled slightly, the liquid particles remain liquid while the liquid skin on the crystallites solidifies. In situ x-ray diffraction reveals that the liquid skin thickness changes reversibly

Original languageEnglish (US)
Pages (from-to)2391-2393
Number of pages3
JournalApplied Physics Letters
Volume71
Issue number16
DOIs
StatePublished - Oct 20 1997

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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