Fig. 2: Magnetic-field-induced correlations and three-dimensional CDW order in YBa2Cu3O6.67.

a, b X-ray diffraction intensity maps around (0, 4 − δb, ℓ) with B = 14 T and 16.5 T, respectively. c, d, and e are ℓ- and k-dependent intensity profiles along the vertical and horizontal white dashed lines in a, b. f Delineation of the scattering plane and probed reciprocal space (grey). The in-plane incommensurability δb is defined by the horizontal arrow. g Diffraction intensity map displayed in false colour, as a function of ℓ and magnetic field. Source data are provided as a Source Data file.