Relationship between critical current properties and nanorod morphology in REBa2Cu3Oy, thin films

M. Haruta, N. Fujita, Y. Ogura, T. Nakata, T. Maeda, A. Ichinose, Paolo Mele, K. Matsumoto, S. Horii

Research output: Contribution to journalConference article

Abstract

Changes in critical current properties depending on growth temperature (Ts) were clarified for Ba-Nb-O-doped YBa2Cu3Oy (Y123) films deposited by YAG- and excimer-PLD. Due to the introduction of Ba-Nb-O-nanorods, a vortex-Bose-glass-like behavior emerged as irreversibility lines and in-field critical current densities (Jcs) were improved. Crossover magnetic fields (Bcr) and in-field Jcs increased with the increase in Ts for the Y123 films with nanorods. These Ts-dependent critical current properties were attributable to the changes in morphology of the nanorods with Ts and were independent of laser source in PLD apparatuses. For the fabrication of RE123 coated conductors containing nanorods, optimization of Ts with taking both materials of RE123 matrix and nanorod into account is necessary to achieve higher in-field Jc.

Original languageEnglish
Pages (from-to)63-68
Number of pages6
JournalMaterials Research Society Symposium Proceedings
Volume1434
Issue numberJanuary
DOIs
Publication statusPublished - 2012 Jan 1
Externally publishedYes
Event2012 MRS Spring Meeting - San Francisco, United States
Duration: 2012 Apr 92012 Apr 13

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ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Haruta, M., Fujita, N., Ogura, Y., Nakata, T., Maeda, T., Ichinose, A., Mele, P., Matsumoto, K., & Horii, S. (2012). Relationship between critical current properties and nanorod morphology in REBa2Cu3Oy, thin films. Materials Research Society Symposium Proceedings, 1434(January), 63-68. https://doi.org/10.1557/opl.2012.1588