Fig. 1 | Nature Communications

Fig. 1

From: Large orbital polarization in nickelate-cuprate heterostructures by dimensional control of oxygen coordination

Fig. 1

Interfacial engineering of oxygen coordination in SrCuO2/LaNiO3 superlattices. Schematics for SrCuO2/LaNiO3 (SCO/LNO) heterostructures with a planar-type SrCuO2 and b chain-type SrCuO2, resulting in different oxygen coordination and orbital polarization of Ni ions in LaNiO3. c X-ray diffraction (XRD) θ–2θ scans of a LaNiO3 film (34 nm in thickness), ((SrCuO2)N/(LaNiO3)1)M (noted as (SN/L1)M) superlattices, and a SrCuO2 film (28 nm). The red and black arrows indicate the SrTiO3 002 peak and the peaks from superlattices or films, respectively, showing a clear modulation of out-of-plane lattice constants

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