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    Chapter

    Metal Clusters: How Many Atoms are Required for Thermionic Emission ?

    We observe thermionic emission from free refractory metal clusters Wn, n ≥ 5 and Tan, n ≥ 4, following excitation by a Q-switched Nd:YAG laser at its 2nd, 3rd and 4th harmonic. The ion yield from this process, wh...

    T. Leisner, K. Athanassenas, O. Echt… in Physics and Chemistry of Finite Systems: F… (1992)

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    Chapter

    Thermionic Emission of Free Tantalum Clusters

    In this paper we report on the thermionic emission of electrons from hot metal clusters. Tantalum clusters were exposed to a 10 ns laser pulse, and the delayed emission of electrons from the clusters was recor...

    T. Leisner, K. Athanassenas, O. Echt… in Cluster Models for Surface and Bulk Phenom… (1992)