Abstract
A persistent-current experiment maintained for 12 days with a sample of is reported. The estimated upper limit of resistivity is 2× Ω cm. A logarithmic decay at the beginning is detected, which is in good agreement with the flux-creep theory. Variations in decay rate due to changes of trapped field and temperature are measured.
- Received 11 May 1987
DOI:https://doi.org/10.1103/PhysRevB.36.2414
©1987 American Physical Society