| Full text | |
| Author(s): |
Okazaki, Anderson K.
;
de Oliveira, Rafael Furlan
;
Freire, Rafael Luiz Heleno
;
Fazzio, Adalberto
;
de Lima, Felipe Crasto
Total Authors: 5
|
| Document type: | Journal article |
| Source: | Journal of Physical Chemistry C; v. 127, n. 16, p. 6-pg., 2023-04-13. |
| Abstract | |
Two-dimensional arsenic allotropes have been grown on metallic surfaces, while topological properties have been theoretically described on strained structures. Here, we experimentally grow arsenene by molecular beam epitaxy over the insulating SiC substrate. The arsenene presents a flat structure with a strain field that follows the SiC surface periodicity. Our ab initio simulations, based on the density functional theory, corroborate the experimental observation. The strained structure presents a new arsenene allotrope with a triangular structure, rather than the honeycomb previously predicted for other pnictogens. This strained structure presents a Peierls-like transition leading to an indirect gap semiconducting behavior. (AU) | |
| 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: | 21/06238-5 - Functionalized solution-processed 2D materials: development of prototyping electric sensors and biosensors |
| Grantee: | Rafael Furlan de Oliveira |
| Support Opportunities: | Research Grants - Young Investigators Grants |
| FAPESP's process: | 19/14949-9 - EMU: multiuser infrastructure dedicated to nanofabrication and characterization of nanodevices at LNNano/CNPEM |
| Grantee: | Edson Roberto Leite |
| Support Opportunities: | Multi-user Equipment Program |
| FAPESP's process: | 19/20857-0 - Two-dimensional materials and topological phases: prediction and control of its properties |
| Grantee: | Felipe David Crasto de Lima |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 20/14067-3 - Two-Dimensional Nano-Heteroestructures: DFT Simulations and Machine Learning of Interacting Interfaces |
| Grantee: | Rafael Luiz Heleno Freire |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |