Journal
ADVANCED MATERIALS
Volume 24, Issue 48, Pages 6423-6428Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201202691
Keywords
perovskite oxide interface; pulsed laser deposition; LaAlO3; SrTiO3; atomic layer engineering; epitaxial strain
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Funding
- U.S. Department of Energy, Basic Energy Sciences, Materials Sciences and Engineering Division
- Scientific User Facilities Division, Office of Basic Energy Sciences, U.S. Department of Energy
- U.S. Department of Energy, Basic Energy Sciences [DE-AC02-06CH11357]
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Atomic layer engineering enables fabrication of a chemically sharp oxide heterointerface. The interface formation and strain evolution during the initial growth of LaAlO3/SrTiO3 heterostructures by pulsed laser deposition are investigated in search of a means for controlling the atomic-sharpness of the interface. This study shows that inserting a monolayer of LaAlO3 grown at high oxygen pressure dramatically enhances interface abruptness.
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