| Автор | S R Currás |
| Автор | J A Veira |
| Автор | J Maza |
| Автор | Félix Vidal |
| Дата выпуска | 2000-07-01 |
| dc.description | The resistivity, ρ, and the critical current density at zero applied magnetic field, J<sub>c</sub>, of ceramic Y<sub>1</sub>Ba<sub>2</sub>Cu<sub>3</sub>O<sub>7-δ</sub> samples with different average grain size, a (from 5 to 14 µm), are reported. These results show that at a given temperature J<sub>c</sub> depends only on the specific contact resistance of the average grain boundary junction, ρ<sub>□</sub>, so that the product J<sub>c</sub>ρ<sub>□</sub> is sample independent. The relevance of ρ<sub>□</sub> and not of a on J<sub>c</sub> has been further tested on a subset of samples having very different average grain size but similar ρ<sub>□</sub> for which negligible variations of J<sub>c</sub> are observed. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Critical current density versus normal-state resistivity in granular high-temperature superconductors with different average grain size |
| Тип | paper |
| DOI | 10.1088/0953-2048/13/7/317 |
| Electronic ISSN | 1361-6668 |
| Print ISSN | 0953-2048 |
| Журнал | Superconductor Science and Technology |
| Том | 13 |
| Первая страница | 1005 |
| Последняя страница | 1010 |
| Аффилиация | S R Currás; Laboratorio de Bajas Temperaturas y Superconductividad<sup>1</sup>, Departamento de Física de la Materia Condensada, Universidad de Santiago de Compostela, E15706, Spain |
| Аффилиация | J A Veira; Laboratorio de Bajas Temperaturas y Superconductividad<sup>1</sup>, Departamento de Física de la Materia Condensada, Universidad de Santiago de Compostela, E15706, Spain |
| Аффилиация | J Maza; Laboratorio de Bajas Temperaturas y Superconductividad<sup>1</sup>, Departamento de Física de la Materia Condensada, Universidad de Santiago de Compostela, E15706, Spain |
| Аффилиация | Félix Vidal; Laboratorio de Bajas Temperaturas y Superconductividad<sup>1</sup>, Departamento de Física de la Materia Condensada, Universidad de Santiago de Compostela, E15706, Spain |
| Выпуск | 7 |
