Fig. 5: K-cuts of the strain-induced 3D CDW. | Nature Communications

Fig. 5: K-cuts of the strain-induced 3D CDW.

From: Using strain to uncover the interplay between two- and three-dimensional charge density waves in high-temperature superconducting YBa2Cu3Oy

Fig. 5

a YBCO6.67K-cut through the 3D CDW peak at integer L, maximal compression and T = 60.5 K ~ Tc show an intense peak at incommensurate KCDW = 0.310(1) r.l.u., with δ marking the incommensurability with respect to the closest commensurate value, K = 1/3. Vertical grey lines mark where discommensurations would lead to satellite peaks at KCDW ± 2δ. b YBCO6.55K-cut through the 3D CDW peak at integer L, maximal compression and T = 45 K < Tc in the superconducting state, where the vertical grey line marks where pair--density waves are expected to produce a peak at KPDW = KCDW/2 = 0.327(1)/2 r.l.u. Lines are Gaussian fits on top of a linear background. Note that the width of the peaks in these figures are limited by the experimental resolution (see Supplementary Information).

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