Effect of Zr addition and magnetic field process on the J c property of CVD-HoBa 2Cu 3O 7-x films

Xianping Zhang, Satoshi Awaji, Ryousuke Ishihara, Masafumi Namba, Gen Nishijima, Shun Ito, Eiji Aoyagi, Yanwei Ma, Kazuo Watanabe

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Effects of Zr addition and magnetic field process on the superconducting property of HoBa 2Cu 3O 7-x films fabricated by a chemical vapor deposition technique in magnetic fields have been investigated. It is found that Zr additions lead to improvement of the critical current density J c in-field, while a further J c enhancement along the c-axis of the HoBa 2Cu 3O 7-x films is obtained in magnetic field processed samples. The nano-particles and nano-rods induced by the Zr addition are thought to account for the in-field J c improvement. In addition, it seems that there are more columnar defects in the samples deposited under magnetic field than the normal samples, which in turn enhance the pinning ability along the c-axis.

Original languageEnglish
Pages (from-to)188-192
Number of pages5
JournalJournal of Alloys and Compounds
Volume527
DOIs
Publication statusPublished - 2012 Jun 25

Keywords

  • Artificial pinning centers
  • Magnetic field
  • Nano-structures

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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