Abstract
BaxCa1-xRuO3 (BCRO) thin films were prepared by laser ablation on quartz substrates at a substrate temperature (Tsub) of 973 K and an oxygen pressure (Po2) of 13 Pa. The effect of Ba substitution on the microstructure and electrical conductivity (σ) was investigated. Rectangular-shaped CaRuO3 (CRO) island grains grew in BCRO thin films at a Ba fraction (x) below 0.1. BCRO thin films prepared at x > 0.2 consisted of fine grains. BCRO thin films at x > 0.2 showed metallic conduction, whereas those with an island structure at x < 0.1 showed semi-conducting behavior. The σ increased from 2.5 × 10 3 S·m-1 to 3.8 × 104 S·m-1 with increasing x from 0.1 to 1.0.
Original language | English |
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Pages (from-to) | 1822-1825 |
Number of pages | 4 |
Journal | Materials Transactions |
Volume | 49 |
Issue number | 8 |
DOIs | |
Publication status | Published - 2008 Aug |
Keywords
- Barium ruthenate
- Conductive oxide
- Electrical conductivity
- Laser ablation
- Microstructure
- Strontium ruthenate
- Thin films
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering