Effect of electronic correlation on topological end-states in finite-size graphene nanoribbons
Fuente:
arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2023
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| _version_ | 1866911953400627200 |
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| author | Honet, Antoine Henrard, Luc Meunier, Vincent |
| author_facet | Honet, Antoine Henrard, Luc Meunier, Vincent |
| contents | Finite size armchair graphene nanoribbons (GNR) of different families are theoretically studied using the Hubbard model in both mean-field and GW approximations, including spin correlation effects. It is shown that correlation primarily affect the properties of topological end states of the nanoribbons. A representative structure of each of the three GNR families is considered but the 7-atom width nanoribbon is studied in detail and compared to experimental results, showing a clear improvement when correlations are included. Using on numerically computed local density of states, spin-polarized measurements in scanning tunneling microscopy are also suggested to help distinguish and highlight correlation effects. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2304_02910 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Effect of electronic correlation on topological end-states in finite-size graphene nanoribbons Honet, Antoine Henrard, Luc Meunier, Vincent Strongly Correlated Electrons Finite size armchair graphene nanoribbons (GNR) of different families are theoretically studied using the Hubbard model in both mean-field and GW approximations, including spin correlation effects. It is shown that correlation primarily affect the properties of topological end states of the nanoribbons. A representative structure of each of the three GNR families is considered but the 7-atom width nanoribbon is studied in detail and compared to experimental results, showing a clear improvement when correlations are included. Using on numerically computed local density of states, spin-polarized measurements in scanning tunneling microscopy are also suggested to help distinguish and highlight correlation effects. |
| title | Effect of electronic correlation on topological end-states in finite-size graphene nanoribbons |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2304.02910 |