J. Phys. Soc. Jpn. 75S (2006) pp. 220-225  |Previous Article| |Next Article|  |Table of Contents|
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Proc. of 5th Int. Symposium on ASR-WYP-2005 – Advances in the Physics and Chemistry of Actinide Compounds –

Fermi Surface Studies on Np115- and Related Compounds

Hiroshi Yamagami

Fermi surface studies in actinide 115-type compounds UNiGa₅, UPtGa₅, NpRhGa₅ and the related AuCu₃-type compound NpGe₃ are performed with a relativistic band calculation in the local-density approximation. The recently observed de Haas–van Alphen (dHvA) frequencies are quantitatively analyzed using the obtained Fermi surfaces. In the case of the magnetic 115-compounds, especially, NpRhGa₅ the Fermi surface and the local magnetic moment, calculated in the orbital-polarized band scheme based on an itinerant 5f picture, can give a systematic interpretation of the observed dHvA frequencies and the magnetic moment.

URL: http://jpsj.ipap.jp/link?JPSJS/75S/220/
DOI: 10.1143/JPSJS.75S.220

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