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

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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
Title of host publicationRecent Advances in Superconductors, Novel Compounds and High-TC Materials
EditorsJ. Shimoyama, E. Hellstrom, M. Putti, K. Matsumoto, T. Kiss
PublisherMaterials Research Society
Pages63-68
Number of pages6
EditionJanuary
ISBN (Electronic)9781510804791
DOIs
Publication statusPublished - 2012
Event2012 MRS Spring Meeting - San Francisco, United States
Duration: 2012 Apr 92012 Apr 13

Publication series

NameMaterials Research Society Symposium Proceedings
NumberJanuary
Volume1434
ISSN (Print)0272-9172

Other

Other2012 MRS Spring Meeting
CountryUnited States
CitySan Francisco
Period12/4/912/4/13

ASJC Scopus subject areas

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

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