A theory of magnetism for semi-metallic uranium compounds |
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Authors: | H. Adachi S. Imoto |
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Affiliation: | Department of Nuclear Engineering, Faculty of Engineering, Osaka University, Suita-shi, Osaka, Japan |
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Abstract: | A theoretical study is carried out to explain the magnetic properties of uranium compounds of NaCl, anti-Cu2Sb and Th3P4 type. The electronic model used is a modified free electron model along the lines of the band structure for NaCl type uranium compounds previously reported. An exchange interaction via the conduction electrons is assumed for the mechanism of magnetic ordering. The molecular field approximation is used to calculate θ, TN and the exchange interaction constants. The stability range of various magnetic ordering states and the variation of θ, TN and exchange interaction constants are obtained as functions of lattice parameter. These results well explain the experimental data. |
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