Microstructure and electrical conductivity of epitaxial BaRuO3 thin films prepared on (001), (110) and (111) SrTiO3 substrates by laser ablation

Akihiko Ito, Hiroshi Masumoto, Takashi Goto

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

BaRuO3 (BRO) thin Alms were prepared on SrTiO3 (STO) single crystal substrate by laser ablation, and their microstructures and the anisotropy of electrical conductivity were investigated. The (205) and (104) doubly oriented BRO thin film was grown epitaxially on (001) STO substrate. Epitaxial (110) and (009) BRO thin films were obtained on (110) and (111) STO substrates, respectively, at oxygen pressure of 13 Pa and substrate temperature of 973 K. Epitaxial (205) (104) BRO thin film had a tetragonal texture whereas (110) BRO thin film showed a faceted island texture, Epitaxial (009) BRO thin films had a smooth surface due to a good lattice consistency between (009) BRO plane and (111) STO plane, and exhibited the highest electrical conductivity of 1.1 x 105 Sm-1 among the (205) (104), (110) and (009) BRO thin films.

Original languageEnglish
Pages (from-to)1919-1923
Number of pages5
JournalMaterials Transactions
Volume48
Issue number7
DOIs
Publication statusPublished - 2007 Jul

Keywords

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

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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