| Автор | B D Padalia |
| Автор | Gunadhor S Okram |
| Автор | Om Prakash |
| Автор | R Suba |
| Автор | Sanjay Gupta |
| Автор | S J Gurman |
| Автор | J C Amiss |
| Дата выпуска | 1998-12-01 |
| dc.description | Effects of the substitution of divalent A (Ca, Sr or Ba) ion in Ce excess non-superconducting compound, leading to revival of superconductivity, are studied by measuring absorption edges of all the cations with synchrotron radiation. It is found that in these NACCO samples, Cu exists mainly in the 2+ state; the weak pre-edge feature near the position is marginally affected due to ions. Except for the case of Ba doping, a fall in the intensity of the white line at the Cu K-edge is observed. This is attributed to a decrease in lattice oxygen content (oxygen vacancy creation) leading to an increase in electron carriers. It is noted that when the effective charge on Cu is , the -type samples are superconducting. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | X-ray absorption near edge structure study of -type revived superconducting compounds, (NACCO), A = Ca, Sr or Ba, |
| Тип | paper |
| DOI | 10.1088/0953-2048/11/12/005 |
| Electronic ISSN | 1361-6668 |
| Print ISSN | 0953-2048 |
| Журнал | Superconductor Science and Technology |
| Том | 11 |
| Первая страница | 1381 |
| Последняя страница | 1385 |
| Выпуск | 12 |
