Abstract
We have developed the concept of a characteristic temperature at which the flux first fully penetrates the sample. Based on this concept, we have interpreted the effects of the temperature on the magnetic relaxation that have been measured in a single crystal of in a broad range of temperature (5–35 K) and applied magnetic field (0.1–4 kG). The magnetic relaxation exhibits a clear peak in the dM/d lnt-versus-temperature plot, and the peak position is highly affected by the applied field. We have also interpreted the peak shift of dM/d lnt with different fields in terms of the flux-creep and the critical-state models.
- Received 19 February 1991
DOI:https://doi.org/10.1103/PhysRevB.43.13049
©1991 American Physical Society