Abstract
An experiment is described which allows to measure the caloric curve of size selected sodium cluster ions. This allows to determine rather easily the melting temperatures, and latent heats in the size range between 55 and 340 atoms per cluster. A more detailed analysis is necessary to show that the cluster Na +147 has a negative microcanonical heat capacity, and how to determine the entropy of the cluster from the data.
The work was supported by the Deutsche Forschungsgemeinschaft through SFB 276.
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Haberland, H. (2001). Melting of Clusters. In: Guet, C., Hobza, P., Speigelman, F., David, F. (eds) Atomic clusters and nanoparticles. Agregats atomiques et nanoparticules. Les Houches - Ecole d’Ete de Physique Theorique, vol 73. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-45621-X_2
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