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Strain extrapolations from a single curve at 4.07 K and an applied strain of 0.35% (same conditions as figure 12). (a) Extrapolations to 2.45 K and applied strains from −0.75% to +0.31% (corresponding to intrinsic strains of −1.05% to 0.01%). (b) Extrapolations to 10 K and the same range of strains. The RMS extrapolation error is only ∼0.10%.
