TY - JOUR
T1 - Relation between Pinning Potential and Critial Current Density of YBaCuO Superconducting Thin Films
AU - Enpuku, Keiji
AU - Sako, Ryuich
AU - Kisu, Takanobu
AU - Yoshida, Keiji
PY - 1990/7
Y1 - 1990/7
N2 - 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.
AB - 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.
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U2 - 10.1143/JJAP.29.L1069
DO - 10.1143/JJAP.29.L1069
M3 - Article
AN - SCOPUS:0025464330
VL - 29
SP - L1069-L1071
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 7
ER -