Probing the Wannier function of Crystalline Solids with Angle‐Resolved Photoemission Spectroscopy (Adv. Mater. Interfaces 4/2025)

Wannier Wave Function Probe Angle-resolved photoemission spectroscopy (ARPES) has been a widely adopted technique to investigate surface and shallow interface electron energy-momentum dispersion. The cover picture of article 2400427 by Charles H. Ahn and co-workers, proposes a new way of using ARPES to reconstruct the electron wave function on crystalline surfaces, via the dipole-transition matrix element effect and spectral sum rule.