Extended Data Fig. 4: Linear dichroism spatial mapping.
From: Strain tuning of vestigial three-state Potts nematicity in a correlated antiferromagnet
a, Nematic directors (represented by the white arrows) at each sampled point overlaid on top of the reflection raster map for various piezo voltages. The raster map was scanned over 28 μm × 14 μm area with 1 μm step sizes. The maximally negative voltage corresponds to the highest compressive strain applied. Scale bar: 5 μm. The absence of distinct nematic domains, which are separated by 2π/3, across the sample demonstrates that the results of Fig. 2a, b are not a product of our probe beam concomitantly sampling adjacent nematic domains. b, Optical image of the measured strain sample. The red box represents the area which the LD mapping was measured, and the black arrow shows the strain direction. Scale bar: 5 μm.
