Dependence of surface resistance in HTS thin films on a dc magnetic field

A. Saito, M. Shirakawa, K. Kitamura, Y. Noguchi, M. Mukaida, H. Yamasaki, Y. Nakagawa, S. Ohshima

研究成果: Contribution to journalArticle査読

12 被引用数 (Scopus)

抄録

We investigated the behavior of the surface resistance (Rs) of high-temperature superconductor (HTS) thin films exposed to a dc magnetic field (parallel to the c-axis). Measurements were done using the dielectric resonator method and superconducting magnet system. The DyBa2Cu 3O7-δ (DyBCO) and YBa2Cu 3O7-δ (YBCO) thin films (produced by THEVA GmbH) were prepared through a thermal co-evaporation method. The resonant frequency of the TE011 mode in the resonator was approximately 22 GHz. A dc magnetic field of up to 5 T was applied vertically to two parallel superconducting thin films placed into a closed-type Cu cavity. Rs of the DyBCO and YBCO thin films increased as the applied dc magnetic field increased. The Rs ratio (defined as Rs(5 T)/R s(0 T)) of the DyBCO and YBCO thin films at 4.5 K was approximately 5 and 50, respectively. These results indicate that the DyBCO thin film may be better for use in low-temperature nuclear magnetic resonance applications.

本文言語英語
ページ(範囲)3692-3695
ページ数4
ジャーナルIEEE Transactions on Applied Superconductivity
15
2 PART III
DOI
出版ステータス出版済み - 6 2005
外部発表はい

All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • 電子工学および電気工学

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