Electronic structure of the intermetallic compounds Ce2Fe17 and Ce2Fe15.3 M 1.7 (M = Al, Si): Experiment and theory
| العنوان: | Electronic structure of the intermetallic compounds Ce2Fe17 and Ce2Fe15.3 M 1.7 (M = Al, Si): Experiment and theory |
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| المؤلفون: | V. I. Anisimov, L. D. Finkel’shteĭn, N. N. Efremova, Alexey V. Lukoyanov, Alexey S. Shkvarin, A. G. Kuchin, Yu. I. Kuz’min, Yu. V. Knyazev, I. A. Nekrasov |
| المصدر: | Physics of the Solid State. 49:99-106 |
| بيانات النشر: | Pleiades Publishing Ltd, 2007. |
| سنة النشر: | 2007 |
| مصطلحات موضوعية: | Materials science, Valence (chemistry), Condensed matter physics, Absorption spectroscopy, Exchange interaction, Intermetallic, chemistry.chemical_element, Electronic structure, Condensed Matter Physics, Electronic, Optical and Magnetic Materials, Ion, Condensed Matter::Materials Science, Cerium, chemistry, Curie temperature, Physical chemistry, Condensed Matter::Strongly Correlated Electrons |
| الوصف: | The electronic structure of the intermetallic compounds Ce2Fe17 and Ce2Fe15.3 M 1.7 (M = Al, Si) is theoretically calculated in the local-spin-density approximation. It is shown that a considerable increase in the Curie temperature upon introduction of Al and Si impurities is accompanied by a proportional increase in the exchange interaction parameters J ij within the Heisenberg model for iron ions in the 6c crystallographic positions. The experimental optical conductivities of the compounds under investigation are interpreted in terms of the calculated electronic structure. The experimental valences obtained for the cerium ions from an analysis of the Ce L 3 x-ray absorption spectra indicate that cerium in these intermetallic compounds is in intermediate valence states. |
| تدمد: | 1090-6460 1063-7834 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::c5d816375a291840a32d3a3557015ed3 https://doi.org/10.1134/s1063783407010179 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........c5d816375a291840a32d3a3557015ed3 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 10906460 10637834 |
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