Images in momentum-space of the electrons and holes constituting excitons. The red clusters represent electrons, with the top image showing exciton-bo...
When two slightly different layers are overlaid at a specific angle, they produce a moiré pattern. In the field of spectroscopy, this pattern results...
When light is shone on a semiconducting material, the particles of light interact with the material’s electrons (shown here in blue). This causes th...