| Full text | |
| Author(s): |
dos Santos, Washington F.
;
Amorim, Felippe
;
Reily Rocha, Alexandre
Total Authors: 3
|
| Document type: | Journal article |
| Source: | Nanotechnology; v. 36, n. 2, p. 8-pg., 2025-01-13. |
| Abstract | |
Carbon-based nanostructures have unparalleled electronic properties. At the same time, using an allotrope of carbon as the contacts can yield better device control and reproducibility. In this work, we simulate a single-electron transistor composed of a segment of a graphene nanoribbon coupled to carbon nanotubes electrodes. Using the non-equilibrium Green's function formalism we atomistically describe the electronic transport properties of the system including electron-electron interactions. Using this methodology we are able to recover experimentally observed phenomena, such as the Coulomb blockade, as well as the corresponding Coulomb diamonds. Furthermore, we separate the different contributions to transport and show that incoherent effects due to the interaction play a crucial role in the transport properties depending on the region of the stability diagram being considered. (AU) | |
| FAPESP's process: | 23/09820-2 - Materials by design: from quantum materials to energy applications |
| Grantee: | Gustavo Martini Dalpian |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 23/11751-9 - Machine learning systems under the influence of an external bias: introducing potentiostat models in neural network molecular dynamics simulations |
| Grantee: | Alexandre Reily Rocha |
| Support Opportunities: | Scholarships abroad - Research |
| FAPESP's process: | 17/02317-2 - Interfaces in materials: electronic, magnetic, structural and transport properties |
| Grantee: | Adalberto Fazzio |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 21/14335-0 - ICTP South American Institute for Fundamental Research: a regional center for Theoretical Physics |
| Grantee: | Nathan Jacob Berkovits |
| Support Opportunities: | Special Projects |