Relation between Pinning Potential and Critial Current Density of YBaCuO Superconducting Thin Films

Keiji Enpuku, Ryuich Sako, Takanobu Kisu, Keiji Yoshida

Research output: Contribution to journalArticle

8 Citations (Scopus)

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 languageEnglish
Pages (from-to)L1069-L1071
JournalJapanese Journal of Applied Physics
Volume29
Issue number7
DOIs
Publication statusPublished - Jul 1990

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Relation between Pinning Potential and Critial Current Density of YBaCuO Superconducting Thin Films'. Together they form a unique fingerprint.

  • Cite this