Apr 12, 2019
How heteroepitaxy occurs on strontium titanate
How heteroepitaxy occurs on strontium titanate
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Abstract
In traditional models of heteroepitaxy, the substrate serves mainly as a crystalline template for the thin-film lattice, dictating the initial roughness of the film and the degree of coherent strain. Here, performing in situ surface x-ray diffraction during the heteroepitaxial growth of LaTiO3 on SrTiO3 (001), we find that a TiO2 adlayer composed of the
(13×13)
R33.7° and
(2×2)
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