Real-time X-ray study of roughness scaling in the initial growth of epitaxial BaTiO3/LaNiO3 superlattices

Effects of substrate temperature on the physical properties of strained BaTiO3/LaNiO3 artificial superlattices

“…Table 2 shows best fitted results of a set of reflectivity curves of the superlattice films deposited at varied substrate temperatures. The reflectivity curves of superlattice films deposited at 300-550 1C exhibit a typical shape in which one can find Bragg peaks separated by Kisseig fringes, giving evidence for the vertical periodicity of composition modulation(not shown here) [17,18]. In this work, superlattice film deposited at 550 1C has smooth surface and interface; moreover, quite rough surface and interface were observed with the film deposited at 300 1C.…”