Stair-rod dislocations in perovskite films on LaAlO3 substrates

J. S. Wu*, C. L. Jia, K. Urban, J. H. Hao, X. X. Xi

*Corresponding author for this work

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

Two types of stair-rod dislocation formed at junctions of {111} stacking faults in SrTiO3-SrRuo3 two-layer films on LaAlO3 substrates have been studied by high-resolution transmission electron microscopy. The first type, formed by the interaction of two stacking faults situated at the flat SrRuO3-laAlO3 interface without any step, has a Burgers vector (a/3)〈110〉. The other type, formed by the interaction of two stacking faults, of which one starts from the SrRuO3-LaAlO3 interface area involving an interface step, has a Burgers vector (a/3)〈120〉. The formation mechanism of the stair-rod dislocations and the effect of the step are discussed.

Original languageEnglish (US)
Pages (from-to)375-383
Number of pages9
JournalPhilosophical Magazine Letters
Volume81
Issue number6
DOIs
StatePublished - Jun 1 2001

ASJC Scopus subject areas

  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Stair-rod dislocations in perovskite films on LaAlO<sub>3</sub> substrates'. Together they form a unique fingerprint.

  • Cite this