| Автор | Q A Pankhurst |
| Автор | M R J Gibbs |
| Дата выпуска | 1993-05-10 |
| dc.description | The available evidence both for and against the existence of non-collinear spin structures in 3d-based amorphous ferromagnets is assessed, and supplemented with the results of an extended <sup>57</sup>Fe Mossbauer study of two series of post-production treated materials. Mossbauer spectra of as-received, stress-relieved and field-annealed ribbons of Fe<sub>78</sub>B<sub>13</sub>Si<sub>9</sub> and Fe<sub>40</sub>Ni<sub>40</sub>B<sub>20</sub> were recorded in zero applied field at room temperature for a number of angles of inclination between the gamma -ray beam and the normal to the ribbon plane. The resultant data were compared with four different moment distribution models: (i) a single uniform moment, (ii) an ellipsoidal distribution, (iii) a wedge-shaped distribution, and (iv) a two-moment domain model. None of these models provided an adequate description of the non-annealed ribbons, whereas model (iii) fitted the annealed Fe<sub>78</sub>B<sub>13</sub>Si<sub>9</sub> ribbons and model (iv) fitted the annealed Fe<sub>40</sub>Ni<sub>40</sub>B<sub>20</sub> ribbons. It is concluded that there is cumulative evidence in favour of ambient non-collinear spin structures in some annealed as well as non-annealed metallic glasses, but that the scale of the moment correlation lengths remains unresolved. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Moment canting in 3d-based amorphous ferromagnets |
| Тип | paper |
| DOI | 10.1088/0953-8984/5/19/023 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 5 |
| Первая страница | 3275 |
| Последняя страница | 3288 |
| Аффилиация | Q A Pankhurst; Dept. of Phys., Liverpool Univ., UK |
| Аффилиация | M R J Gibbs; Dept. of Phys., Liverpool Univ., UK |
| Выпуск | 19 |
