Macroscopic persistent currents in YBa2Cu3O7 |
| |
Authors: | P Leiderer R Feile |
| |
Institution: | (1) Institut für Physik, Johannes-Gutenberg-Universität, Postfach 3980, D-6500 Mainz 1, Germany |
| |
Abstract: | Persistent currents in polycrystalline YBa2Cu3O7 rings have been investigated by measuring the spatial distribution of the magnetic flux trapped in field-cooled samples. The results unambiguously show that macroscopic persistent ring currents exist. The critical current density depends very sensitively on the sample quality, reachingj
c
250 A/cm2 at 77 K for our best samples. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|