Line Plot from Scientific Research

Temperature-dependent evolution of the (111) d spacing of SrRuO 3 (blue circles) and SrTiO 3 (grey squares). The uncertainty of the d spacing in our measurement ( Methods ) is approximately 3 × 10 −5 and 1 × 10 −6 Å for SrRuO 3 and SrTiO 3 , respectively, but not shown here. The red solid line shows the predicted lattice evolution of the polar SrRuO 3 . The red and black dashed lines show the lattice evolution, depending linearly on temperature, of nonpolar SrRuO 3 and SrTiO 3 , respectively.

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