Critical current density enhancement around a matching field in ErBa 2Cu3O films with BaZrO3 nano-rods

Masashi Mukaida, Tomoya Horide, Ryusuke Kita, Shigeru Horii, Ataru Ichinose, Yutaka Yoshida, Osuke Miura, Kaname Matsumoto, Kazuhiro Yamada, Nobuyuki Mori

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Abstract

Field angular dependences of critical current density are measured for as-grown high crystalline quality ErBa2Cu3O 7-δ films with BaZrO3 nano-rods. Large critical current density enhancement is observed. The magnetic field where the enhancement is observed coincides with the matching field calculated from the density of BaZrO3 nano-rods. The largest enhancement is observed in B || c-axis of ErBa2Cu3O7-δ films. This anisotropic critical current density enhancement is thought to be caused by the direction of BaZrO3 nano-rods which grow along the c-axis of the films. BaZrO3 nano-rods in the films will promise the application of coated conductors in a magnetic field.

Original languageEnglish
Pages (from-to)L952-L954
JournalJapanese Journal of Applied Physics, Part 2: Letters
Volume44
Issue number28-32
DOIs
Publication statusPublished - Dec 1 2005

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

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    Mukaida, M., Horide, T., Kita, R., Horii, S., Ichinose, A., Yoshida, Y., Miura, O., Matsumoto, K., Yamada, K., & Mori, N. (2005). Critical current density enhancement around a matching field in ErBa 2Cu3O films with BaZrO3 nano-rods. Japanese Journal of Applied Physics, Part 2: Letters, 44(28-32), L952-L954. https://doi.org/10.1143/JJAP.44.L952