DOMAIN STRUCTURES OF EPITAXIAL SrRuO3 THIN FILMS
نویسندگان
چکیده
The structural characteristics of SrRuO3 thin films deposited on a (001) SrTiO3 substrate by pulsed laser were studied by transmission electron microscopy (TEM) and high-resolution TEM. TEM studies of cross-sectional specimens revealed the epitaxial growth of the films with the SrRuO3-(110) plane parallel to the SrTiO3-(001) plane. Two types of 90° rotational domain structures were observed in both cross-sectional and plan-viewing specimens. The in-plane orientations of these domains with respect to the substrate are either of SrRuO3-[ 1 10] // SrTiO3[100] and SrRuO3-[001] // SrTiO3-[010], or of SrRuO3-[1 1 0] // SrTiO3-[010] and SrRuO3-[001] // SrTiO3-[100].
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