| Автор | D T Edmonds |
| Автор | G P Gill |
| Дата выпуска | 1971-08-16 |
| dc.description | From an analysis of the room temperature nuclear resonance of <sup>27</sup>Al principal values are obtained for the electric field gradient eq V<sub>zz</sub>/h and the anisotropy constant eta at an aluminium site for GdAlO<sub>3</sub> (0.589+or-0.01 MHz and 0.878), TbAlO<sub>3</sub>(0.890+or-0.01 MHz and 0.01 MHz and 0.613) and DyAlO<sub>3</sub> (1.30+or-0.03 MHz and 0.655). The directions of the principal axes of the electric field gradient relative to the crystal axes are obtained. At low temperatures the nuclear resonance of <sup>27</sup>Al is measured in GdAlO<sub>3</sub> in the paramagnetic region (T>3.87 K) and the antiferromagnetic region (1.4 K<T<3.87K). The results obtained are shown to agree with a simple model based on the currently held view of the ordered magnetic structure of this salt. There remains a large discrepancy between the magnitude of the observed internal magnetic field at an <sup>27</sup>Al site and that calculated assuming classical magnetic dipole coupling. The possibility of a large anisotropic transferred hyperfine interaction is discussed. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Nuclear resonance of <sup>27</sup>Al in three rare earth aluminates from room temperature to 1.4K |
| Тип | paper |
| DOI | 10.1088/0022-3719/4/11/018 |
| Print ISSN | 0022-3719 |
| Журнал | Journal of Physics C: Solid State Physics |
| Том | 4 |
| Первая страница | 1426 |
| Последняя страница | 1436 |
| Аффилиация | D T Edmonds; Oxford Univ., UK |
| Аффилиация | G P Gill; Oxford Univ., UK |
| Выпуск | 11 |
