Effects of dielectric film surface on oxygen diffusion

Jumpei Suzuki, Kenji Matsumoto, Minoru Ryu, Yoshiki Iwazaki, Toshimasa Suzuki, Ken Watanabe, Minako Hashiguchi, Isao Sakaguchi, Naoki Ohashi

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The oxygen diffusivity in BaTiO3 thin films heteroepitaxially grown on SrTiO3 substrates was investigated using a gas/solid exchange technique with 18O-isotope-enriched gas. Deformation of the BaTiO 3 lattice and inhibition of the oxygen diffusivity occurred simultaneously when the YSZ layer, which is assumed to be catalytic for the 18O/16O exchange reaction, was deposited on BaTiO3. The mechanism for the reduction in oxygen diffusivity due to the YSZ cover layer is discussed in terms of residual stress in the strained BaTiO3 layer.

Original languageEnglish
Pages (from-to)410-414
Number of pages5
JournalJournal of the Ceramic Society of Japan
Volume122
Issue number1426
DOIs
Publication statusPublished - Jun 2014

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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