An Investigation of Magnetic Alloys of PtTe₂ and PdTe₂ using Angle Resolved Photoemission Spectroscopy (ARPES)

With the emergence of two-dimensional materials with long-range magnetic ordering such as CrI₃ and Cr₂Ge₂Te₆, interest has grown towards new air-stable two-dimensional ferromagnets. Here we present an investigation into the valence band structure of 2 families of transition metal dichalcogenides, Cr_xPt_1-xTe₂ and Cr_xPd_1-xTe₂ grown by the Goldberger group at Ohio State University, using Angle Resolved Photoemission Spectroscopy (ARPES). PdTe₂ and PtTe₂ are reported as type-II Dirac Semimetals^1,2 and with chromium substitution, these materials have the potential to preserve some of their topological properties, while remaining air-stable, and possibly ferromagnetic to the monolayer. We perform an ARPES study that utilizes different light polarizations and energies of synchrotron light.