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Abstract: An interface modification of LCMO-BTO superlattices was found to massivelyinfluence magnetic and magnetotransport properties. Moreover it determines thecrystal structure of the manganite layers, changing it from orthorhombic Pnmafor the conventional superlattice cSL, to rhombohedral R-3c for themodified one mSL. While the cSL shows extremely nonlinear ac transport, themSL is an electrically homogeneous material. The observations go beyond anoversimplified picture of dead interface layers and evidence the importance ofelectronic correlations at perovskite interfaces.



Autor: K. Gehrke, V. Moshnyaga, O. I. Lebedev, D.Kirilenko, G.Van Tendeloo, K. Samwer

Fuente: https://arxiv.org/







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