Influence of rare-earth substitution on the magnetic structure and band structure of the kagome material DyMn6Ge6

Kagome materials are of significant interest in condensed-matter physics due to their unique band structures and emergent topological phases when combined with spin-orbit coupling and magnetism. In this work, we investigate the impact of rare-earth elemental substitution on the magnetic and electronic properties of the manganese-based kagome material DyMn6Ge6, achieving tunable magnetic states ranging from ferrimagnetism to antiferromagnetism. High-resolution angle-resolved photoemission spectroscopy further reveals that the robust kagome lattice structure remains intact despite the elemental substitution. Our observations reveal stable Dirac points, which persist across different compositions, highlighting the material's potential for exploring exotic magnetic topological phases and quantum transport phenomena. These findings offer valuable insights into the independent tuning of magnetism and electronic structure in kagome materials, thereby paving the way for advanced studies and applications in the realm of quantum materials.