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High pressure studies of actinide intermetallics

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Abstract

Magnetic properties of NpOs2,NpAl2. NpCo2Si2, NpAs, and NpSn3 are investigated by high pressure Mössbauer spectroscopy using the 60 keV transition in237Np. A wide spectrum between itinerant (band-like) electron behaviour and highly localized 5f electron magnetism is observed. Delocalization of 5f electrons may be determined by direct 5f-5f overlap between neighbouring Np ions or may be mediated by the valence electrons of the alloying partner.

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This work has been funded by the German Federal Minister for Research and Technology (BMFT) under Contract No. 03-KA1TUM-4.

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Potzel, U., Moser, J., Potzel, W. et al. High pressure studies of actinide intermetallics. Hyperfine Interact 47, 399–413 (1989). https://doi.org/10.1007/BF02351620

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