Metamagnetic state

In the same spirit, Eriksson et al. (unpublished) considered the possibility of a similar difference between the bulk and surface for Pu as above for a-Ce. The main limitation in their work was that for calculational reasons they were compelled to represent a-Pu by an fee structure. Nevertheless, the results suggested very different surface and bulk behaviour and that the surface of Pu is -like (the anomalous fee phase observed at elevated temperatures for bulk Pu). Photoelectron spectroscopy data on a-Pu taken by Cox (unpublished) show features which may be rationalized by such a physical situation. It seems significant that the five-layer slab calculation by Eriksson and co-workers yields a central layer which is not bulk-like at all. Instead, a large magnetic moment was obtained, which shows that there is a metamagnetic state for bulk fee Pu, which for the thin film was induced in the central layer of the slab by the presence of the surface. It would, therefore, be interesting to investigate... 

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