YBa2Cu3O7 films processed by CVD in high magnetic fields

K. Watanabe, Y. Ma, S. Awaji, M. Motokawa

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

In order to develop a new fabrication process using a high magnetic field, we intended to demonstrate a chemical vapour deposition technique in magnetic fields (in-field CVD). The in-field CVD apparatus was made for the first time, combining with an 11 T cryogen-free superconducting magnet. From a viewpoint of high temperature superconducting power applications, YBa2Cu3O7 films deposited on polycrystalline Ag tapes were prepared by in-field CVD process. It is found that the magnetic field in the CVD method improves the crystallinity of YBa2Cu3O7. Moreover, we found that the surface morphology of YBa2Cu3O7 outstandingly changed by the in-field CVD process, and in particular, the grain size of YBa2Cu3O7 is reduced by a factor of about 10 by applying a magnetic field above a few tesla.

Original languageEnglish
Pages (from-to)411-415
Number of pages5
JournalSuperconductor Science and Technology
Volume15
Issue number3
DOIs
Publication statusPublished - 2002 Mar 1

ASJC Scopus subject areas

  • Ceramics and Composites
  • Condensed Matter Physics
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

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