Extended Data Fig. 9: Data on a strained region where the CDW intensity contrast and Bragg vector ratio do not respond to the magnetic field.
From: Optical manipulation of the charge-density-wave state in RbV3Sb5
a, Large scale topography image (~87 nm × 87 nm) of the post-cleaned region. A wrinkle is clearly observed, indicating the presence of the strong residual in-plane strain in this region. b,d, Zoom-in topography image (30 nm × 30 nm) of the same region under +2 T and −2 T magnetic field perpendicular to the sample surface. c,e, FTs of (b) and (d) show a robust intensity order between \({{\boldsymbol{Q}}}_{1}\) and \({{\boldsymbol{Q}}}_{3}\) with respect to the opposite directions of out-of-plane magnetic field. f, Intensity contrast plot (\({{\boldsymbol{Q}}}_{r}\) in left panel) and Bragg vector ratio (\({{\boldsymbol{Q}}}_{r}\) in right panel) from this region. The intensity contrast does not show a sign change between + 2 and −2 T field. The Bragg vector ratio shows a marginal change (≈0.0005) compared to the case (≈0.01, Fig. 4h) where there is a flip in the sign of the CDW intensity contrast (Fig. 4g).
