Structural evolution of W nano clusters with increasing cluster size

S. J. Oh, S. H. Huh, H. K. Kim, J. W. Park, G. H. Lee

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

We have recorded.the x-ray diffraction (XRD) patterns of nanometer-size W metal clusters prepared at different average cluster sizes. Nanometer-size W metal clusters were produced through a collision induced clustering mechanism of W metal atoms generated by decomposing W(CO)6 vapors. The XRD patterns clearly showed that structure changed from amorphous→face-centered-cubic (fcc)→body-centered-cubic (bcc) with increasing average cluster size. This implies that W metal clusters do not simply approach the bulk bcc structure but pass through an intermediate fcc structure before they reach the bulk structure, as predicted by Tománek, Mukherjee, and Bennemann [Phys. Rev. B 28, 665 (1983)].

Original languageEnglish
Pages (from-to)7402-7404
Number of pages3
JournalJournal of Chemical Physics
Volume111
Issue number16
DOIs
StatePublished - 22 Oct 1999

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