| Автор | Q A Pankhurst |
| Автор | J Z Jiang |
| Автор | S Betteridge |
| Автор | M R J Gibbs |
| Автор | G A Gehring |
| Дата выпуска | 1995-12-04 |
| dc.description | The phenomenon of `moment canting`, where the atomic moments in a soft magnetic material do not completely align with an applied field of substantial magnitude, has been measured as a function of field in field annealed Fe<sub>78</sub>Si<sub>9</sub>B<sub>13</sub> metallic glass ribbons. Probability distributions for the Fe moment directions were deduced from unpolarized <sup>57</sup>Fe Mossbauer experiments. A method of analysis was devised to account for spectral saturation effects, and validated with reference to polycrystalline alpha -Fe. Fields of up to 0.5 T were applied at room temperature in the ribbon plane. Even in 0.5 T the in-plane moment canting did not fall to zero, with the standard deviation of the Gaussian spread in moment directions remaining at 12 degrees +or-1 degrees . Fields of up to 9 T were applied at 4.2 K, normal to the ribbon plane. Even in 9 T appreciable canting was observed, with a Gaussian standard deviation of 11 degrees +or-1 degrees with respect to the applied field direction. An a priori `combed hair` model was developed to describe the moment canting that would result from the presence of a few frustrated exchange interactions between some magnetic atoms. Long-distance moment canting was predicted, with a truncated inverse sine probability distribution. The data were found to be adequately described using this model. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Moment canting in amorphous FeSiB ribbons in applied fields: unpolarized Mossbauer effect studies |
| Тип | paper |
| DOI | 10.1088/0953-8984/7/49/020 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 7 |
| Первая страница | 9571 |
| Последняя страница | 9593 |
| Аффилиация | Q A Pankhurst; Dept. of Phys. & Astron., Univ. Coll. London, UK |
| Аффилиация | J Z Jiang; Dept. of Phys. & Astron., Univ. Coll. London, UK |
| Аффилиация | S Betteridge; Dept. of Phys. & Astron., Univ. Coll. London, UK |
| Аффилиация | M R J Gibbs; Dept. of Phys. & Astron., Univ. Coll. London, UK |
| Аффилиация | G A Gehring; Dept. of Phys. & Astron., Univ. Coll. London, UK |
| Выпуск | 49 |
