Stair-rod dislocations in perovskite films on LaAlO3substrates

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

Research output: Journal article publicationJournal articleAcademic researchpeer-review

14 Citations (Scopus)


Two types of stair-rod dislocation formed at junctions of {111} stacking faults in SrTiO3-SrRuo3two-layer films on LaAlO3substrates 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-laAlO3interface 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-LaAlO3interface 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
Pages (from-to)375-383
Number of pages9
JournalPhilosophical Magazine Letters
Issue number6
Publication statusPublished - 1 Jun 2001
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics

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