J. Phys. Soc. Jpn. 75S (2006) pp. 253-255  |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 –

Mean Field Model for the Magnetic Behavior of NpTGa₅ with T = Co, Ni and Rh

Annamária Kiss and Yoshio Kuramoto

A crystalline electric field (CEF) model of localized 5f⁴ electrons is proposed to explain the characteristics of magnetic phase transitions in NpTGa₅ with T = Co, Ni and Rh. The model takes a doublet and a singlet as local states, and involves dipolar and quadrupolar intersite interactions in the mean-field theory. Varied ordering phenomena are found depending on the interaction parameters, which are consistent with the experimentally observed behaviors.

URL: http://jpsj.ipap.jp/link?JPSJS/75S/253/
DOI: 10.1143/JPSJS.75S.253

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