| Автор | S M Kim |
| Автор | W J L Buyers |
| Дата выпуска | 1978-05-01 |
| dc.description | The temperature dependence of the positron annihilation peak coincidence rate has been measured in iron from 20 degrees C to 1320 degrees C. The peak rate did not change across the ferro-para magnetic transition at approximately 770 degrees C but decreases by 1.5% across the alpha - gamma phase transition at 910 degrees C. The trapping model analysis of the data yields values of the vacancy formation energies (E<sub>f</sub>) of 1.4+or-0.1 eV in alpha -Fe and 1.7+or-0.2 eV in gamma -Fe. The correlation between E<sub>f</sub> and T<sub>t</sub>, where T<sub>t</sub> is the threshold temperature, has been derived from the trapping model. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Vacancy formation energy in iron by positron annihilation |
| Тип | lett |
| DOI | 10.1088/0305-4608/8/5/001 |
| Print ISSN | 0305-4608 |
| Журнал | Journal of Physics F: Metal Physics |
| Том | 8 |
| Первая страница | L103 |
| Последняя страница | L108 |
| Аффилиация | S M Kim; Atomic Energy of Canada Ltd., Chalk River, Ont., Canada |
| Аффилиация | W J L Buyers; Atomic Energy of Canada Ltd., Chalk River, Ont., Canada |
| Выпуск | 5 |
