Octahedral tilt propagation controlled by a-site cation size at perovskite oxide heterointerfaces

Ryotaro Aso, Daisuke Kan, Yuichi Shimakawa, Hiroki Kurata

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

A clear correlation between the A-site cation size and the octahedral tilt propagation from the substrates into the ATiO3 (A = Ba2+, Sr2+, Sr2+0.7Ca2+0.3, and Sr2+0.5Ca2+0.5) epitaxial thin films was found from the observations of ATiO3/GdScO3 heterostructures using high-resolution annular bright-field scanning transmission electron microscopy. The in-plane oxygen displacements at the interface increase with decreasing the A-site cation size and facilitate the TiO6 octahedral tilt propagation across the interface. The results highlight the significance of the A-site cation size as a controlling factor for structural distortions at oxide-based heterointerfaces.

Original languageEnglish
Pages (from-to)2128-2132
Number of pages5
JournalCrystal Growth and Design
Volume14
Issue number5
DOIs
Publication statusPublished - May 7 2014
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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