Henrard, Luc

Honet, Antoine

Meunier, Vincent

English

Finite size armchair graphene nanoribbons (GNRs) 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 seven-atom width nanoribbon is studied in detail and compared to previously published experimental results, showing a clear improvement when correlations are included. Using isolated spin contributions to scanning tunneling microscopy (STM) simulations, spin-polarized measurements in STM are also suggested to help distinguish and highlight correlation effects.</p

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Correlation effects on topological end-states in finite-size graphene nanoribbons in the GW approximation

https://pure.unamur.be/ws/files/87233111/Honet_2023_J._Phys._Condens._Matter_35_485703.pdf

Correlation effects on topological end-states in finite-size graphene nanoribbons in the GW approximation

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Repository of the University of Namur

Repository of the University of Namur