Anisotropic Metallic Electronic Structure of Pd₇_-xSnTe₂

Pd_7-xSnTe₂ is a layered intermetallic compound exhibiting metallic behavior with a highly anisotropic electronic structure. Angle-resolved photoemission spectroscopy (ARPES) reveals electron-like Fermi surface pockets centered at the M points and weaker hole-like features at Γ, arising from steep dispersive bands without evidence of flat bands or Dirac-like crossings. Polarization-dependent measurements suggest orbital selectivity between Pd d and Te p states but confirm a conventional metallic band topology. In contrast, Pd₅AlI₂ exhibits orbital-driven frustrated hopping, producing Dirac-like and nearly flat bands characteristic of decorated checkerboard lattices. The comparison establishes Pd_7-xSnTe₂ as a benchmark anisotropic metal, while Pd₅AlI₂ demonstrates how orbital frustration can drive electronic reconstruction toward correlated or topologically enriched phases. This distinction clarifies how orbital interactions governs the emergence or absence of exotic quantum behaviors in layered intermetallics.