Abstract
The relation between the pinning potential and the critical current density of YBaCuO thin films in weak magnetic fields is studied experimentally. The pinning potential U is obtained by comparing the current-voltage characteristics of the film with the flux-creep theory. The values U=25–120 meV are obtained for films with the critical current density jc(T=0)=5.3×105–1.8×107 A/cm2. It is shown that the pinning potential increases with the increase of the critical current density. The obtained results can be qualitatively explained with the pinning model of isolated vortices.
| Original language | English |
|---|---|
| Pages (from-to) | L1069-L1071 |
| Journal | Japanese Journal of Applied Physics |
| Volume | 29 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - Jul 1990 |
All Science Journal Classification (ASJC) codes
- Engineering(all)
- Physics and Astronomy(all)
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Enpuku, K., Sako, R., Kisu, T., & Yoshida, K. (1990). Relation between Pinning Potential and Critial Current Density of YBaCuO Superconducting Thin Films. Japanese Journal of Applied Physics, 29(7), L1069-L1071. https://doi.org/10.1143/JJAP.29.L1069