Yeah I like Sethna a lot but he is a theorist - the experiment was done for Na clusters by a guy named Haberland. It was published in Science a few years ago.

Yeah I like Sethna a lot but he is a theorist - the experiment was done for Na clusters by a guy named Haberland. It was published in Science a few years ago. [edit] Sorry I mean nature: M. Schmidt, R. Kusche, B. v. Issendorff und H. Haberland, Irregular variations in the melting point of size-selected atomic clusters, Nature, 393, 238-240 (1998). http://cluster.physik.uni-freiburg.de/lit/preprints/Natmelt.pdf http://cluster.physik.uni-freiburg.de/lit/preprints/Natmelt.... There experiment is pretty hard to understand though.