Superconducting density of states and band structure at the surface of the candidate topological superconductor Au_{2}Pb
The electronic band structure of Au_{2}Pb has a Dirac cone which gaps when undergoing a structural transition into a low temperature superconducting phase. This suggests that the superconducting phase (T_{c}=1.1 K) might hold topological properties at the surface. Here we make Scanning Tunneling Mic...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2022-06-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.4.023241 |
| _version_ | 1797210743588782080 |
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| author | Francisco Martín-Vega Edwin Herrera Beilun Wu Víctor Barrena Federico Mompeán Mar García-Hernández Paul C. Canfield Annica M. Black-Schaffer José J. Baldoví Isabel Guillamón Hermann Suderow |
| author_facet | Francisco Martín-Vega Edwin Herrera Beilun Wu Víctor Barrena Federico Mompeán Mar García-Hernández Paul C. Canfield Annica M. Black-Schaffer José J. Baldoví Isabel Guillamón Hermann Suderow |
| author_sort | Francisco Martín-Vega |
| collection | DOAJ |
| description | The electronic band structure of Au_{2}Pb has a Dirac cone which gaps when undergoing a structural transition into a low temperature superconducting phase. This suggests that the superconducting phase (T_{c}=1.1 K) might hold topological properties at the surface. Here we make Scanning Tunneling Microscopy experiments on the surface of superconducting Au_{2}Pb. We measure the superconducting gap and find a sizable superconducting density of states at the Fermi level. We discuss possible origins for this finding in terms of superconductivity induced into surface states. |
| first_indexed | 2024-04-24T10:15:27Z |
| format | Article |
| id | doaj.art-ab07683c96b443a19acdbb197fc120c1 |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:15:27Z |
| publishDate | 2022-06-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-ab07683c96b443a19acdbb197fc120c12024-04-12T17:22:12ZengAmerican Physical SocietyPhysical Review Research2643-15642022-06-014202324110.1103/PhysRevResearch.4.023241Superconducting density of states and band structure at the surface of the candidate topological superconductor Au_{2}PbFrancisco Martín-VegaEdwin HerreraBeilun WuVíctor BarrenaFederico MompeánMar García-HernándezPaul C. CanfieldAnnica M. Black-SchafferJosé J. BaldovíIsabel GuillamónHermann SuderowThe electronic band structure of Au_{2}Pb has a Dirac cone which gaps when undergoing a structural transition into a low temperature superconducting phase. This suggests that the superconducting phase (T_{c}=1.1 K) might hold topological properties at the surface. Here we make Scanning Tunneling Microscopy experiments on the surface of superconducting Au_{2}Pb. We measure the superconducting gap and find a sizable superconducting density of states at the Fermi level. We discuss possible origins for this finding in terms of superconductivity induced into surface states.http://doi.org/10.1103/PhysRevResearch.4.023241 |
| spellingShingle | Francisco Martín-Vega Edwin Herrera Beilun Wu Víctor Barrena Federico Mompeán Mar García-Hernández Paul C. Canfield Annica M. Black-Schaffer José J. Baldoví Isabel Guillamón Hermann Suderow Superconducting density of states and band structure at the surface of the candidate topological superconductor Au_{2}Pb Physical Review Research |
| title | Superconducting density of states and band structure at the surface of the candidate topological superconductor Au_{2}Pb |
| title_full | Superconducting density of states and band structure at the surface of the candidate topological superconductor Au_{2}Pb |
| title_fullStr | Superconducting density of states and band structure at the surface of the candidate topological superconductor Au_{2}Pb |
| title_full_unstemmed | Superconducting density of states and band structure at the surface of the candidate topological superconductor Au_{2}Pb |
| title_short | Superconducting density of states and band structure at the surface of the candidate topological superconductor Au_{2}Pb |
| title_sort | superconducting density of states and band structure at the surface of the candidate topological superconductor au 2 pb |
| url | http://doi.org/10.1103/PhysRevResearch.4.023241 |
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