Surface Octahedral Distortions and Atomic Design of Perovskite Interfaces. (28th June 2013)

• Record Type: Journal Article
• Authors: Petrov, A. Yu.; Torrelles, X.; Verna, A.; Xu, H.; Cossaro, A.; Pedio, M.; Garcia‐Barriocanal, J.; Castro, G. R.; Davidson, B. A.
• Is Part Of: Advanced materials. Volume 25:Number 29(2013)
• Page Start: 4043
• Page End: 4048
• Publication Date: 2013-06-28
• Subjects: Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.201301841
• Languages: English
• ISSNs: 0935-9648

Abstract

<abstract abstract-type="graphical" xml:lang="en"> <title> <x xml:space="preserve">Abstract</x> </title> <p> <bold>Atomic engineering of perovskite films and interfaces</bold> is significantly improved by in situ optimization of reflection high‐energy electron diffraction (RHEED) features resulting from surface BO₆ octahedral rotations seen during molecular‐beam epitaxy growth. This approach yields Sr‐doped manganite films across the phase diagram with magnetotransport properties that are, for the first time, identical to bulk single crystals. Careful structural analysis of manganite/titanate interfaces shows that cation intermixing and unit cell dilations are eliminated, while BO₆ rotations and Jahn‐Teller‐type elongations are nearly completely suppressed at the interface. <boxed-text content-type="graphic" position="anchor" orientation="portrait"><graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgg36gxz4pt" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></boxed-text></p> </abstract>