| Автор | M Biasini |
| Автор | G Ferro |
| Автор | M A Monge |
| Автор | G Di Francia |
| Автор | V La Ferrara |
| Дата выпуска | 2000-07-10 |
| dc.description | We performed two-dimensional angular correlation of the electron-positron annihilation radiation (2D-ACAR) and positron lifetime measurements on a porous Si sample. From the width of the narrow 2D-ACAR component, attributed to the positronium atom, we estimated the average size of the pores to be ~2.4 nm and did not find evidence of a preferential propagation of the pores. Moreover, by comparing the 2D-ACAR spectrum with that observed for a pure Si crystal, we isolated a further isotropic component attributable to crystal defects of unknown origin. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Study of the structure of porous silicon via positron annihilation experiments |
| Тип | paper |
| DOI | 10.1088/0953-8984/12/27/314 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 12 |
| Первая страница | 5961 |
| Последняя страница | 5970 |
| Выпуск | 27 |
