Epitaxial growth of BaRuO3 thin films on MgO substrates by laser ablation

Akihiko Ito, Hiroshi Masumoto, Takashi Goto, Shunichi Sato

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Epitaxial BaRuO3 (BRO) thin films were prepared on (001) and (111) MgO substrates by laser ablation, and the relationship of lattice matching, morphology and electrical conductivity was investigated. (205)- and (001)-oriented rhombohedral BRO thin films were epitaxially grown on (001) and (111) MgO substrates, respectively. The (205) BRO thin films showed an orthogonal texture with faceted island grains, whereas the (001) BRO thin films had a hexagonal columnar structure with a flat terrace. Epitaxial BRO thin films showed metallic conduction, and the (205) BRO thin films exhibited the highest electrical conductivity, i.e., 1.0 × 105 S.m-1, at room temperature. A higher lattice matching between epitaxial thin film and the substrate yielded a higher electrical conductivity.

Original languageEnglish
Pages (from-to)426-430
Number of pages5
JournalJournal of the Ceramic Society of Japan
Volume117
Issue number1364
DOIs
Publication statusPublished - 2009 Apr

Keywords

  • Barium ruthenate
  • Electrical conductivity
  • Epitaxial growth
  • Laser ablation
  • Microstructure
  • Thin films

ASJC Scopus subject areas

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

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