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

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)3692-3695
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Issue number2 PART III
Publication statusPublished - Jun 2005
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


Dive into the research topics of 'Dependence of surface resistance in HTS thin films on a dc magnetic field'. Together they form a unique fingerprint.

Cite this