Early self-assembled stages in epitaxial SrRuO3 on LaAlO3

Vasco, E.; Dittmann, R.; Karthäuser, S.; Waser, R.

doi:10.1063/1.1566798

Journal Article

PreJuSER-32040

Early self-assembled stages in epitaxial SrRuO3 on LaAlO3

Vasco, E.FZJ* ; Dittmann, R.FZJ* ; Karthäuser, S.FZJ* ; Waser, R.FZJ*

2003
American Institute of Physics Melville, NY

Applied physics letters 82, 2497 (2003) [10.1063/1.1566798]

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Please use a persistent id in citations: http://hdl.handle.net/2128/1242 doi:10.1063/1.1566798

Abstract: The stress-induced self-assembled growth of SrRuO3 on LaAlO3 was studied by atomic force microscopy and x-ray diffraction. SrRuO3 epitaxially grown on LaAlO3 by pulsed laser deposition shows two types of out-of-plane arrangements and four in-plane matches. The lattice mismatch (stress) produced by these arrangements was estimated and correlated with the SrRuO3 growth dynamics. After 1 nm, the SrRuO3 film surface exhibits a ripple structure, which serves as a template for the development of a nanopattern of flat islands. These islands coalesce anisotropically resulting in a regular array of "infinite" wires. The wire coalescence for the 12-20 nm thick film nullifies the surface symmetry, while SrRuO3 keeps growing in three dimensions. (C) 2003 American Institute of Physics.

Keyword(s): J

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