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

Keiji Enpuku, Ryuich Sako, Takanobu Kisu, Keiji Yoshida

研究成果: Contribution to journalArticle査読

8 被引用数 (Scopus)

抄録

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.

本文言語英語
ページ(範囲)L1069-L1071
ジャーナルJapanese Journal of Applied Physics
29
7
DOI
出版ステータス出版済み - 7 1990

All Science Journal Classification (ASJC) codes

  • 工学(全般)
  • 物理学および天文学(全般)

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