Observation of Termination-Dependent Topological Connectivity in a Magnetic Weyl Kagome Lattice.

ABSTRACT: Engineering surfaces and interfaces of materials promises great potential in the field of heterostructures and quantum matter designers, with the opportunity to drive new many-body phases that are absent in the bulk compounds. Here, we focus on the magnetic Weyl kagome system Co₃Sn₂S₂ and show how for the terminations of different samples the Weyl points connect differently, still preserving the bulk-boundary correspondence. Scanning tunneling microscopy has suggested such a scenario indirectly, and here, we probe the Fermiology of Co₃Sn₂S₂ directly, by linking it to its real space surface distribution. By combining micro-ARPES and first-principles calculations, we measure the energy-momentum spectra and the Fermi surfaces o

SUBMITTER: Mazzola F 

PROVIDER: S-EPMC10510577 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature