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dc.contributor.authorMazzola, Federico
dc.contributor.authorEnzner, Stefan
dc.contributor.authorEck, Philipp
dc.contributor.authorBigi, Chiara
dc.contributor.authorJugovac, Matteo
dc.contributor.authorCojocariu, Iulia
dc.contributor.authorFeyer, Vitaliy
dc.contributor.authorShu, Zhixue
dc.contributor.authorPierantozzi, Gian Marco
dc.contributor.authorDe Vita, Alessandro
dc.contributor.authorCarrara, Pietro
dc.contributor.authorFujii, Jun
dc.contributor.authorKing, Phil D. C.
dc.contributor.authorVinai, Giovanni
dc.contributor.authorOrgiani, Pasquale
dc.contributor.authorCacho, Cephise
dc.contributor.authorWatson, Matthew D.
dc.contributor.authorRossi, Giorgio
dc.contributor.authorVobornik, Ivana
dc.contributor.authorKong, Tai
dc.contributor.authorDi Sante, Domenico
dc.contributor.authorSangiovanni, Giorgio
dc.contributor.authorPanaccione, Giancarlo
dc.identifier.citationMazzola , F , Enzner , S , Eck , P , Bigi , C , Jugovac , M , Cojocariu , I , Feyer , V , Shu , Z , Pierantozzi , G M , De Vita , A , Carrara , P , Fujii , J , King , P D C , Vinai , G , Orgiani , P , Cacho , C , Watson , M D , Rossi , G , Vobornik , I , Kong , T , Di Sante , D , Sangiovanni , G & Panaccione , G 2023 , ' Observation of termination-dependent topological connectivity in a magnetic Weyl Kagome lattice ' , Nano Letters , vol. 23 , no. 17 , pp. 8035–8042 .
dc.identifier.otherRIS: urn:2B6A65BE19F0DEFDED35E47F14B00CCC
dc.descriptionThe research leading to these results has received funding from the European Union’s Horizon 2020 research and innovation program under Marie Skłodowska-Curie Grant Agreement 897276. The authors gratefully acknowledge the Gauss Centre for Supercomputing e.V. ( for funding this project by providing computing time on the GCS Supercomputer SuperMUC-NG at Leibniz Supercomputing Centre ( The authors are grateful for funding support from the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy through the Würzburg-Dresden Cluster of Excellence on Complexity and Topology in Quantum Matter ct.qmat (EXC 2147, Project 390858490), through FOR 5249-449872909 (Project P5), and through the Collaborative Research Center SFB 1170 ToCoTronics (Project 258499086). The authors greatly acknowledge the Diamond Light Source that supported the entire micro-ARPES experiment and corresponding costs. The Flatiron Institute is a division of the Simons Foundation. P.D.C.K. and C.B. gratefully acknowledge support from The Leverhulme Trust via Grant RL-2016-006.en
dc.description.abstractEngineering 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 of Co3Sn2S2 for different surface terminations and show the existence of topological features depending on the top-layer electronic environment. Our work helps to define a route for controlling bulk-derived topological properties by means of surface electrostatic potentials, offering a methodology for using Weyl kagome metals in responsive magnetic spintronics.
dc.relation.ispartofNano Lettersen
dc.titleObservation of termination-dependent topological connectivity in a magnetic Weyl Kagome latticeen
dc.typeJournal articleen
dc.contributor.sponsorThe Leverhulme Trusten
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews. Centre for Designer Quantum Materialsen
dc.contributor.institutionUniversity of St Andrews. Condensed Matter Physicsen
dc.description.statusPeer revieweden

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