Lüders, U.; Li, Q.-R.; Feyerherm, R.; Dudzik, E.: The evolution of octahedral rotations of orthorhombic LaVO3 in superlattices with cubic SrVO3. Journal of Physics and Chemistry of Solids 75 (2014), p. 1354-1360
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We have studied the octahedral rotations in LaVO3/SrVO3 superlattices, keeping the thickness of the orthorhombic LaVO3 layers constant and increasing the thickness of cubic SrVO3 layers. We have found that for a small thickness of SrVO3, the octahedral rotations in LaVO3 are maintained, while for an increasing thickness, these rotations are suppressed. This observation cannot be explained by purely elastic effects due to the lattice mismatch between the two materials, but the absence of rotations in SrVO3 is a crucial ingredient, illustrating the concept of interface engineering of octahedral rotations.