Abstract
Laser vaporization of an icosahedral Al-Pd-Mn sample with detection by time-of-flight mass spectrometry is used to probe metal clusters made from the alloy. After sample vaporization, clusters form by gas aggregation and may contain several to hundreds of atoms. Multi-photon ionization/fragmentation of these clusters yields mass spectra showing many cluster sizes with enhanced intensity. Clusters are identified at masses near those of pseudo- Mackay and Bergman clusters; however, these clusters do not appear special relative to neighboring clusters. Results of this study and its relationship to the proposed cluster structures in quasicrystalline materials are discussed.
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Barrow, J.A., Rexer, E.F., Sordelet, D.J. et al. Analysis of Gas Phase Clusters Made from Laser-Vaporized Icosahedral Al-Pd-Mn. MRS Online Proceedings Library 643, 54 (2000). https://doi.org/10.1557/PROC-643-K5.4
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DOI: https://doi.org/10.1557/PROC-643-K5.4