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JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS
Volume 39, Issue 2A, Pages 572-576Publisher
JAPAN J APPLIED PHYSICS
DOI: 10.1143/JJAP.39.572
Keywords
SrRuO3; MOCVD; conductive oxide; resistivity; low deposition temperature; crystallinity
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SrRuO3 thin films were prepared on (100) LaAlO3 substrates by metalorganic chemical vapor deposition (MOCVD) at various deposition temperatures from 550 degrees C to 750 degrees C. The composition of the film can be controlled by monitoring the composition of the input source gas. Below 600 degrees C, the degree of a-axis orientation of the film gradually decreased with decreasing deposition temperature. However, the resistivity of the film was almost the same fur that reported fur the single crystal and was independent of the deposition temperature when the Ru/(Ru + Sr) ratio of the film was 0.5. The film had almost the same value for the film thickness from 30 to 250 nm deposited at 750 degrees C. Moreover, it increased with the Ru/(Ru + Sr) ratio below 0.45.
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