Fermi Arcs Dominating the Electronic Surface Properties of Trigonal PtBi2
Abstract Materials combining topologically non‐trivial behavior and superconductivity offer a potential route for quantum computation. However, the set of available materials intrinsically realizing these properties are scarce. Recently, surface superconductivity has been reported in PtBi2 in its tr...
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2025-05-01
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| Series: | Advanced Physics Research |
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| Online Access: | https://doi.org/10.1002/apxr.202400150 |
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| author | Sven Hoffmann Sebastian Schimmel Riccardo Vocaturo Joaquin Puig Grigory Shipunov Oleg Janson Saicharan Aswartham Danny Baumann Bernd Büchner Jeroen van den Brink Yanina Fasano Jorge I. Facio Christian Hess |
| author_facet | Sven Hoffmann Sebastian Schimmel Riccardo Vocaturo Joaquin Puig Grigory Shipunov Oleg Janson Saicharan Aswartham Danny Baumann Bernd Büchner Jeroen van den Brink Yanina Fasano Jorge I. Facio Christian Hess |
| author_sort | Sven Hoffmann |
| collection | DOAJ |
| description | Abstract Materials combining topologically non‐trivial behavior and superconductivity offer a potential route for quantum computation. However, the set of available materials intrinsically realizing these properties are scarce. Recently, surface superconductivity has been reported in PtBi2 in its trigonal phase and an inherent Weyl semimetal phase has been predicted. Here, based on scanning tunneling microscopy experiments, the signature of topological Fermi arcs are revealed in the normal state patterns of the quasiparticle interference. It is shown that the scattering between Fermi arcs dominates the interference spectra, providing conclusive evidence for the relevance of Weyl fermiology for the surface electronic properties of trigonal PtBi2. |
| format | Article |
| id | doaj-art-e85d1b608ef74df5b0becaf59944d4c4 |
| institution | DOAJ |
| issn | 2751-1200 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Physics Research |
| spelling | doaj-art-e85d1b608ef74df5b0becaf59944d4c42025-08-20T02:57:05ZengWiley-VCHAdvanced Physics Research2751-12002025-05-0145n/an/a10.1002/apxr.202400150Fermi Arcs Dominating the Electronic Surface Properties of Trigonal PtBi2Sven Hoffmann0Sebastian Schimmel1Riccardo Vocaturo2Joaquin Puig3Grigory Shipunov4Oleg Janson5Saicharan Aswartham6Danny Baumann7Bernd Büchner8Jeroen van den Brink9Yanina Fasano10Jorge I. Facio11Christian Hess12Bergische Univertsität Wuppertal 42119 Wuppertal GermanyBergische Univertsität Wuppertal 42119 Wuppertal GermanyLeibniz Institute for Solid State and Materials Research Helmholtzstraße 20 01069 Dresden GermanyLeibniz Institute for Solid State and Materials Research Helmholtzstraße 20 01069 Dresden GermanyLeibniz Institute for Solid State and Materials Research Helmholtzstraße 20 01069 Dresden GermanyLeibniz Institute for Solid State and Materials Research Helmholtzstraße 20 01069 Dresden GermanyLeibniz Institute for Solid State and Materials Research Helmholtzstraße 20 01069 Dresden GermanyLeibniz Institute for Solid State and Materials Research Helmholtzstraße 20 01069 Dresden GermanyLeibniz Institute for Solid State and Materials Research Helmholtzstraße 20 01069 Dresden GermanyLeibniz Institute for Solid State and Materials Research Helmholtzstraße 20 01069 Dresden GermanyLeibniz Institute for Solid State and Materials Research Helmholtzstraße 20 01069 Dresden GermanyCentro Atómico Bariloche and Instituto Balseiro, CNEA CONICET and Institutode Nanociencia y Nanotecnología 8400 San Carlos de Bariloche ArgentinaBergische Univertsität Wuppertal 42119 Wuppertal GermanyAbstract Materials combining topologically non‐trivial behavior and superconductivity offer a potential route for quantum computation. However, the set of available materials intrinsically realizing these properties are scarce. Recently, surface superconductivity has been reported in PtBi2 in its trigonal phase and an inherent Weyl semimetal phase has been predicted. Here, based on scanning tunneling microscopy experiments, the signature of topological Fermi arcs are revealed in the normal state patterns of the quasiparticle interference. It is shown that the scattering between Fermi arcs dominates the interference spectra, providing conclusive evidence for the relevance of Weyl fermiology for the surface electronic properties of trigonal PtBi2.https://doi.org/10.1002/apxr.202400150density functional theoryfermi arcstopological superconductivitytunneling spectroscopyweyl semimetal |
| spellingShingle | Sven Hoffmann Sebastian Schimmel Riccardo Vocaturo Joaquin Puig Grigory Shipunov Oleg Janson Saicharan Aswartham Danny Baumann Bernd Büchner Jeroen van den Brink Yanina Fasano Jorge I. Facio Christian Hess Fermi Arcs Dominating the Electronic Surface Properties of Trigonal PtBi2 Advanced Physics Research density functional theory fermi arcs topological superconductivity tunneling spectroscopy weyl semimetal |
| title | Fermi Arcs Dominating the Electronic Surface Properties of Trigonal PtBi2 |
| title_full | Fermi Arcs Dominating the Electronic Surface Properties of Trigonal PtBi2 |
| title_fullStr | Fermi Arcs Dominating the Electronic Surface Properties of Trigonal PtBi2 |
| title_full_unstemmed | Fermi Arcs Dominating the Electronic Surface Properties of Trigonal PtBi2 |
| title_short | Fermi Arcs Dominating the Electronic Surface Properties of Trigonal PtBi2 |
| title_sort | fermi arcs dominating the electronic surface properties of trigonal ptbi2 |
| topic | density functional theory fermi arcs topological superconductivity tunneling spectroscopy weyl semimetal |
| url | https://doi.org/10.1002/apxr.202400150 |
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