Fig. 3: Angular-resolved polarized-light imaging of multidomain pattern in β’-In2Se3.
From: Two-dimensional ferroelasticity in van der Waals β’-In2Se3

a Polarized-light image at the polarizer azimuth angle φ = 80° presenting the typical multidomain pattern in 2H β’-In2Se3, with all permissible domain variants and DWs depicted at the bottom. b Azimuth-dependent transmission intensity of the three domain variants A, B and C. The colored squares show the measured data that can be well described by cosine functions, indicating linear dichroism. The antiferroelectric polarization (or nanostripe) direction in each domain variant is determined to be along the light polarization direction where the transmission intensity is maximal.