B-Site Cation Ordering in Films, Superlattices, and Layer-by-Layer-Grown Double Perovskites

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 quenc...

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Bibliographic Details
Published in:Crystals (Basel) 2021-07, Vol.11 (7), p.734
Main Authors: Ksoll, Philipp, Meyer, Christoph, Schüler, Leonard, Roddatis, Vladimir, Moshnyaga, Vasily
Format: Article
Language:English
Subjects:
cation ordering
Cations
Condensed matter physics
Correlation
Crystal structure
double perovskites
Lanthanum compounds
metalorganic aerosol deposition
Molecular beam epitaxy
Oxidation
Perovskites
Phase transitions
physical vacuum deposition
Pulsed laser deposition
Pulsed lasers
Strontium titanates
Substrates
Superlattices
Thin films
Vacuum deposition
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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 A2BB’O6 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 A2BB’O6 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 LaNiO3/LaMnO3 superlattices, and finally, by way of a layer-by-layer route. The growth of La2CoMnO6 films on SrTiO3(111) substrates by sequential deposition of single perovskite layers of LaCoO3/LaMnO3/LaCoO3/… was demonstrated and the film properties were compared to those obtained within the state-of-the art growth mode.
ISSN:2073-4352
2073-4352
DOI:10.3390/cryst11070734