Actinide metals and intermetallic compounds: Electronic structure and magnetic properties |
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| Authors: | B Johansson O Eriksson M S S Brooks |
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| Institution: | (1) Condensed Matter Theory Group, Physics Department, University of Uppsala, Box 530, S-751 21 Uppsala, (Sweden);(2) Commission of the European Communities, Joint Research Centre, European Institute for Transuranium Elements, Postfach 2340, D-7500 Karlsruhe, (FRG) |
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| Abstract: | Cohesive properties are calculated for the AnIr2 and AnRh3 series of intermetallic systems. The positive and negative deviations from Vegard's law found in both series are emphasized. The development of magnetism and 5f localization as a function of increasing actinide atomic number is studied in detail for the two classes of compounds. A relativistic formulation of the Stoner criterion for ferromagnetism is presented and applied to a number of actinide systems. Finally the ferromagnetism of UFe2, NpFe2 and PuFe2 is treated theoretically. For these intermetallic compounds it is found necessary to implement all three Hund's rules into the calculations, before agreement with experiment is obtained. |
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