Microstructure of ErBa2Cu3O7-δ films with BaZrO3 dispersion pinning centers for high JC applications

M. Ito, M. Mukaida, T. Ohazama, R. Kita, A. Ichinose, S. Horii, A. Saito, K. Matsumoto, Y. Yoshida, K. Koike, F. Hirose, S. Ohshima

Research output: Contribution to journalConference article

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Abstract

ErBa2Cu3O7-δ thin films with BaZrO3 dispersion pinning centers for high JC applications were grown using ErBa2Cu3O7-δ targets with various BaZrO3 contents. The JC improvement at high applied magnetic fields was observed for the ErBa2Cu 3O7-δ films with BaZrO3 dispersion pinning centers. From the cross-sectional transmission electron microscope images of the ErBa2Cu3O7-δ films with BaZrO3 dispersion pinning centers, we believe that the BaZrO 3 nano-particles in ErBa2Cu3O 7-δ films play a role of pinning centers. Increase of the amount of BaZrO3 nano-particles in ErBa2Cu 3O7-δ films induced drastic reduction of the surface resistance (RS). This result suggests that the ErBa 2Cu3O7-δ films with BaZrO3 nano-particles can be applied to high power microwave emitting devices.

Original languageEnglish
Pages (from-to)1415-1418
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume426-431
Issue numberII
DOIs
Publication statusPublished - Oct 7 2005
Externally publishedYes
EventProceedings of the 17th Internatioanl Symposium on Superconductivity (ISS 2004) Advances in Superconductivity -
Duration: Nov 23 2004Nov 25 2004

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All Science Journal Classification (ASJC) codes

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

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