| Автор | D Guenzburger |
| Автор | P R Sobral |
| Автор | A P Guimaraes |
| Дата выпуска | 1994-03-21 |
| dc.description | In the intermetallic compound YFe<sub>2</sub>, the metallic hyperfine field at the Y nucleus, as measured by <sup>89</sup>Y NMR spectroscopy, is affected by the substitution of one or more neighbour Y atoms by different rare-earth impurities. In order to understand the underlying mechanisms for the transferred hyperfine interaction, we have performed first-principles calculations, within the local spin-density theory, for embedded clusters representing a Y atom and its vicinity in the compounds Y<sub>1-x</sub>R<sub>x</sub>Fe<sub>2</sub> (R=Gd, Tb, Ho, Tm or Lu) and Y<sub>1-x</sub>Gd<sub>x</sub>Ni<sub>2</sub>. The contact magnetic hyperfine field and the dipolar field were obtained; the resulting total held was found to increase with the spin of the rare-earth impurity. Orbital hyperfine fields were not considered. The contact transferred field was found to arise from direct polarization of the s electrons by the rare-earth spin. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Transferred hyperfine fields in rare-earth-substituted YFe<sub>2</sub> and YNi<sub>2</sub> |
| Тип | paper |
| DOI | 10.1088/0953-8984/6/12/013 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 6 |
| Первая страница | 2385 |
| Последняя страница | 2394 |
| Аффилиация | D Guenzburger; Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, Brazil |
| Аффилиация | P R Sobral; Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, Brazil |
| Аффилиация | A P Guimaraes; Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, Brazil |
| Выпуск | 12 |
