| Summary: | The preparation of cation-ordered thin films of correlated oxides is of great interest for both fundamental and applied research. The scientific long-term vision is strongly motivated by the perspective of studying electronic correlations in condensed matter without the presence of chemical or quenched disorder. A promising material platform provides double perovskite A<sub>2</sub>BB’O<sub>6</sub> bulk samples with different types of B/B’ ordering. However, the growth of A- and/or B-site-ordered correlated oxide thin films is known to be a challenging task. In this review, we evaluate the growth of double perovskite A<sub>2</sub>BB’O<sub>6</sub> thin films by means of well-elaborated physical vacuum deposition techniques, such as pulsed laser deposition (PLD) and sputtering and compare them with a close-to-equilibrium growth with the metalorganic aerosol deposition (MAD) technique. The latter was further developed to grow an emergent interfacial double perovskite phase in LaNiO<sub>3</sub>/LaMnO<sub>3</sub> superlattices, and finally, by way of a layer-by-layer route. The growth of La<sub>2</sub>CoMnO<sub>6</sub> films on SrTiO<sub>3</sub>(111) substrates by sequential deposition of single perovskite layers of LaCoO<sub>3</sub>/LaMnO<sub>3</sub>/LaCoO<sub>3</sub>/… was demonstrated and the film properties were compared to those obtained within the state-of-the art growth mode.
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