| Original Articles |
|
|
|
|
EXPERIMENTAL EVIDENCE OF FLUX JUMPS IN Y-Ba-Cu-O SUPERCONDUCTORS |
| XIA Guoqiang;MA Hong;YAN Shousheng |
| Department of Physics, Peking University, Beijing |
|
| Cite this article: |
|
XIA Guoqiang, MA Hong, YAN Shousheng 1987 Chin. Phys. Lett. 4 549-552 |
|
|
|
|
Abstract The time dependence of the penetration of a weak ac field into Y-Ba-Cu-O superconductors at various dc fields, 0-1500G, was measured at liquid nitrogen temperature. It is found that the signals are very unstable at certain field regions for some of the samples. We believe that this is a direct evidence of the existence of flux jumps which are characteristic of granular superconductors.
|
|
|
Published: 01 December 1987
|
|
|
|
|
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
