Автор |
G A Alvarez |
Автор |
M Sato |
Автор |
T Makita |
Автор |
T Utagawa |
Автор |
T Morishita |
Автор |
Y Enomoto |
Автор |
K Tanabe |
Автор |
K Toma |
Автор |
U Kawabe |
Дата выпуска |
1999-11-01 |
dc.description |
We report on planar junctions fabricated from a- and c-axis quasi-homo-epitaxial NdBa<sub>2</sub>Cu<sub>3</sub>O<sub>7-</sub>/PrBa<sub>2</sub>Cu<sub>3</sub>O<sub>7-</sub>/NdBa<sub>2</sub>Cu<sub>3</sub>O<sub>7-</sub> (NBCO/PBCO/NBCO) multilayers. Investigations of the dependence of the maximum Josephson supercurrent on the external applied magnetic fields made it evident that the spatial variations of the critical current are due to non-uniformities assumed to be localized in the PBCO barrier layer. Well developed Shapiro steps were observed. C-axis tunnelling spectroscopy investigations provide evidence of quasiparticle tunnelling that is commonly observed for superconductor/insulator/superconductor junctions. Furthermore, it was confirmed that the NBCO layers could be incorporated in a multilayer structure without substantial degradation. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Tunnelling characteristics of Nd-Ba-Cu-O/Pr-Ba-Cu-O/ Nd-Ba-Cu-O planar and ramp-edge junctions |
Тип |
paper |
DOI |
10.1088/0953-2048/12/11/394 |
Electronic ISSN |
1361-6668 |
Print ISSN |
0953-2048 |
Журнал |
Superconductor Science and Technology |
Том |
12 |
Первая страница |
1010 |
Последняя страница |
1012 |
Выпуск |
11 |