Quantum interference in graphene nanoconstrictions
We report quantum interference effects in the electrical conductance of chemical vapour deposited graphene nanoconstrictions fabricated using feedback controlled electroburning. The observed multi-mode Fabry-Pérot interferences can be attributed to reflections on potential steps inside the channel....
| Autores principales: | , , , , , , , , , |
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| Formato: | Journal article |
| Publicado: |
American Chemical Society
2016
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| _version_ | 1826264383789989888 |
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| author | Gehring, P Sadeghi, H Sangtarash, S Lau, C Liu, J Ardavan, A Warner, J Lambert, C Briggs, G Mol, J |
| author_facet | Gehring, P Sadeghi, H Sangtarash, S Lau, C Liu, J Ardavan, A Warner, J Lambert, C Briggs, G Mol, J |
| author_sort | Gehring, P |
| collection | OXFORD |
| description | We report quantum interference effects in the electrical conductance of chemical vapour deposited graphene nanoconstrictions fabricated using feedback controlled electroburning. The observed multi-mode Fabry-Pérot interferences can be attributed to reflections on potential steps inside the channel. Sharp anti-resonance features with a Fano line shape are observed. Theoretical modelling reveals that these Fano resonances are due to localised states inside the constriction, which couple to the delocalised states that also give rise to the Fabry-Pérot interference patterns. This study provides new insight into the interplay between two fundamental forms of quantum interference in graphene nanoconstrictions. |
| first_indexed | 2024-03-06T20:06:56Z |
| format | Journal article |
| id | oxford-uuid:2930ca2b-4ea3-41c5-a817-3d97ed10b8ca |
| institution | University of Oxford |
| last_indexed | 2024-03-06T20:06:56Z |
| publishDate | 2016 |
| publisher | American Chemical Society |
| record_format | dspace |
| spelling | oxford-uuid:2930ca2b-4ea3-41c5-a817-3d97ed10b8ca2022-03-26T12:17:46ZQuantum interference in graphene nanoconstrictionsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:2930ca2b-4ea3-41c5-a817-3d97ed10b8caSymplectic Elements at OxfordAmerican Chemical Society2016Gehring, PSadeghi, HSangtarash, SLau, CLiu, JArdavan, AWarner, JLambert, CBriggs, GMol, JWe report quantum interference effects in the electrical conductance of chemical vapour deposited graphene nanoconstrictions fabricated using feedback controlled electroburning. The observed multi-mode Fabry-Pérot interferences can be attributed to reflections on potential steps inside the channel. Sharp anti-resonance features with a Fano line shape are observed. Theoretical modelling reveals that these Fano resonances are due to localised states inside the constriction, which couple to the delocalised states that also give rise to the Fabry-Pérot interference patterns. This study provides new insight into the interplay between two fundamental forms of quantum interference in graphene nanoconstrictions. |
| spellingShingle | Gehring, P Sadeghi, H Sangtarash, S Lau, C Liu, J Ardavan, A Warner, J Lambert, C Briggs, G Mol, J Quantum interference in graphene nanoconstrictions |
| title | Quantum interference in graphene nanoconstrictions |
| title_full | Quantum interference in graphene nanoconstrictions |
| title_fullStr | Quantum interference in graphene nanoconstrictions |
| title_full_unstemmed | Quantum interference in graphene nanoconstrictions |
| title_short | Quantum interference in graphene nanoconstrictions |
| title_sort | quantum interference in graphene nanoconstrictions |
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