Control of oxygen concentration in BSCCO thin films using solid-state electrolytes

Tsuyoshi Watanabe, Toshiaki Yatabe, Hiroo Yugami, Mareo Ishigame

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


A new electrochemical cell using the oxygen ion conducting solid-state electrolyte, yttria-stabilized zirconia (YSZ), was developed to control the oxygen concentration in high-Tc superconducting Bi2Sr2Ca1Cu2O8+x (BSCCO) thin films. In the electrochemical cell, YSZ single crystal plate was used as an oxygen ion pump as well as a substrate for the BSCCO thin film. Oxygen ions were removed from or injected into the BSCCO thin film electrochemically by supplying charges to the cell at 500°C in air. Tc and lattice constant c were found to increase with removing oxygen ions from as-fabricated BSCCO thin films, and to decrease with injecting oxygen ions. These parameters varied reversibly and were correlated, depending on the total charges carried by oxygen ions. It was confirmed that this technique is an effective method to control the oxygen concentration in BSCCO thin films.

Original languageEnglish
Pages (from-to)606-610
Number of pages5
JournalSolid State Ionics
Issue numberPART 1
Publication statusPublished - 1992 Jan 1

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics


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