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 language | English |
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Pages (from-to) | 7402-7404 |
Number of pages | 3 |
Journal | Journal of Chemical Physics |
Volume | 111 |
Issue number | 16 |
DOIs | |
State | Published - 22 Oct 1999 |