Two-step electronic response to magnetic ordering in a van der Waals ferromagnet
Two-step electronic response to magnetic ordering in a van der Waals ferromagnet
The two-dimensional material ${\mathrm{Cr}}_{2}{\mathrm{Ge}}_{2}{\mathrm{Te}}_{6}$ is a member of the class of insulating van der Waals (vdW) magnets. Here, using high resolution angle-resolved photoemission spectroscopy in a detailed temperature dependence study, we identify a clear response of the electronic structure to a dimensional crossover in the form of two distinct temperature …