| Автор | Q A Pankhurst |
| Автор | R J Pollard |
| Дата выпуска | 1990-09-03 |
| dc.description | The problem of interpreting Mossbauer spectra of antiferromagnetic powders subject to applied magnetic fields is considered. A mean-field model for systems with uniaxial anisotropy is used to fit simultaneously spectra taken with applied fields of different strengths. The model predicts a variety of asymmetric broad line profiles depending on the strengths of the exchange and anisotropy terms. The method is applied to the 4.2 K spectra of goethite and haematite subject to longitudinal applied fields of 0, 3, 6 and 9 T. Favourable agreement is obtained with the results from single crystals, showing that the method can be reliably used for a variety of antiferromagnetic materials. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Mossbauer spectra of antiferromagnetic powders in applied fields |
| Тип | paper |
| DOI | 10.1088/0953-8984/2/35/008 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 2 |
| Первая страница | 7329 |
| Последняя страница | 7337 |
| Аффилиация | Q A Pankhurst; Dept. of Phys., Liverpool Univ., UK |
| Аффилиация | R J Pollard; Dept. of Phys., Liverpool Univ., UK |
| Выпуск | 35 |
